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Master Tools Directory 19 Categories

Categorized for rapid engineering & daily calculation

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Length, Distance & Height (40 tools)

Convert meters, feet, inches, miles, kilometers, millimeters & light-years.

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Centimeter Calculator › CM to Feet Converter › CM to Feet Inch Converter › CM to Inches Converter › Cubit to Feet Converter › Feet to Meter Converter › Feet to Mile Converter › Height Converter › Inch Converter › Inch to CM Converter › Inch to Feet Converter › Inch to KM Converter › Inch to Meter Converter › Inches to Fraction Converter › Inches to MM Converter › Kilometer Calculator › KM to Feet Converter › KM to Miles Converter › Length Converter › Linear Foot to Feet Converter › Meter to Feet Converter › Meter to Feet Inch Converter › Meter to Mile Converter › Meter to Nanometer Converter › Meters to Cubit Converter › Micrometer Converter › Mil to Inch Converter › Mil to MM Converter › Mile Conversion Calculator › Millimeter Calculator › MM to CM Converter › MM to Feet Inch Converter › MM to Inch Converter › MM to Meter Converter › MM to Micrometer Converter › Steps to Yard Converter › Thou to MM Converter › Yard to Feet Converter › Yard to Inch Converter › Yard to Metric Mile [High School] Converter ›

Mass, Weight & Traditional Units (34 tools)

Kilograms, pounds, stones, ounces, grams, metric tonnes & traditional units.

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Catty to Lbs Converter › Exatroy Ounce to Tola Converter › Gram to KG Converter › Grams to Ounces Converter › Grams to Pounds Converter › Grams to Tola Converter › Jin [china] to KG Converter › KG to Bag [portland Cement] Converter › KG to Ounce Converter › KG to Pounds Converter › KG to Tola Converter › KG to Ton Converter › Kilograms to Megaton Converter › Lbs to Jin [china] Converter › Lbs to Kip Converter › Megatonne to Gigaton Converter › Megatonne to Kg Converter › Metric Libra to Kg Converter › Metric Tons to Kip Converter › MG to Gram Converter › MG to Lbs Converter › Ounces to Grams Converter › Pound Ounce to KG Converter › Pound to KG Converter › Pound to Ounce Converter › Pounds Ounces Calculator › Pounds to Grams Converter › Pounds to KG Converter › Pounds to Lbs Converter › Quarter Pounds to Grams Converter › Quarter to Lbs Converter › Tola to Grams Converter › Troy Weight Converter › Weight Converter ›

Volume & Capacity (19 tools)

Liters, gallons, fluid ounces, cubic meters, dry volume & cups.

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Ccf to Gallons Converter › Cl to Oz Converter › Cubic Feet Calculator › Cubic Feet to Cubic Yards Converter › Cubic Feet to Gallons Converter › Fluid Ounce to Milliliter Converter › Gallon Calculator › Gallon to Bbl Converter › Gallons to Quarts Converter › Liters to Gallons Converter › ML to Cc Converter › ML to Cups Converter › ML to Oz Converter › ML to Ul Conversion › Ounces to Cups Converter › Oz to Cc Converter › Pint to Cubic Yard Converter › Volume Converter › Volume Dry Converter ›

Mass–Volume & Density (27 tools)

Density, specific gravity and substance-dependent mass-to-volume calculations.

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Cc To Grams Converter › Cubic Feet To Pounds Converter › Fluid Ounce to Ounce Converter › G/ML to LB/Gal Converter › Gallon to Tons Converter › Gallons to Grams Converter › Gallons to KG Converter › Gallons to Pounds Converter › Grams to Fluid Ounces Converter › Grams to Yards Converter › KG To Gallons Converter › KG To Liter Converter › LB/FT³ to G/ML Converter › LB/FT³ to KG/M³ Converter › Liter to Gram Converter › Liters to Pounds Converter › MG To Cc Converter › MG To ML Converter › MG/L to Lbs/Gallon Converter › ML To KG Converter › ML To Lbs Converter › Ounce per Cubic Foot to Kilogram per Liter Converter › Ounce per Gallon to Pound per Quart Converter › Pound to Gallon Converter › Pound to Liter Converter › Quart to Kilogram Converter › Quarts to Pounds Converter ›

Area, Geometry & Angles (7 tools)

Square meters, square feet, acres, hectares, radians, degrees & pyeong.

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Area Converter – Universal Metric, Imperial & Land Area Conversion › Degrees to Radians Converter – deg to rad with Exact π Multiples › Mil to MOA Converter – Milliradians to Minutes of Angle › Square Centimeter to Square Inch Converter – cm² to in² › Square Foot to Pyeong Converter – sq ft to 평 Real Estate Calculator › Square Meter to Square Centimeter Converter – m² to cm² › Square Yard Converter – yd² to sq ft, sq m & Acres Calculator ›

Temperature (4 tools)

Celsius, Fahrenheit, Kelvin, Rankine & thermal scale conversions.

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Celsius to Fahrenheit Converter – °C to °F Calculator › Kelvin to Celsius Converter › Kelvin to Celsius Converter – K to °C Formula & Chart › Temperature Converter – Celsius, Fahrenheit, Kelvin & Rankine ›

Time & Date (21 tools)

Hours, minutes, seconds, milliseconds, days, weeks & payroll timesheets.

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Day Converter – Convert Days to Hours, Minutes, Seconds, Weeks & Months › Days to Hours Converter – Convert d to h Instantly › Days to Months Converter – Mean Gregorian vs Date-Accurate Calendar Calculator › Days to Seconds Converter – Convert d to s Instantly › Days to Weeks Converter – Convert d to wk Instantly › Days to Years Converter – Average Gregorian vs Date-Accurate Calendar Calculator › Hours to Days Converter – Convert h to d Formula & Chart › Hours to Years Converter – Convert h to yr Formula & Chart › Military Time Calculator – 12-Hour to 24-Hour Time Converter & Chart › Milliseconds Converter – Convert ms to Seconds, Minutes, Hours & Microseconds › Minute Converter – Convert Minutes to Seconds, Hours, Days & Weeks › Minutes to Days Converter – Convert min to d Formula & Chart › Minutes to Decimal Hours Converter – Timesheet Payroll Calculator › Minutes to Hours Converter – Convert min to h Formula & Chart › Minutes to Years Conversion – Convert min to yr Formula & Chart › Months to Years Converter – Convert mo to yr Formula & Chart › Seconds Converter – Convert Seconds to Minutes, Hours, Days & Milliseconds › Seconds to Hours Converter – Convert s to h Formula & Chart › Seconds to Minutes Converter – Convert s to min Formula & Chart › Time Converter – Convert Hours, Minutes, Seconds, Days & Weeks › Weeks to Years Converter – Convert wk to yr Formula & Chart ›

Speed, Rotation & Motion (10 tools)

MPH, km/h, knots, Mach numbers, RPM, radians/sec & feed rates.

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Engine Hours To Miles Converter — Heavy Equipment & Fleet Mileage Estimator › Hertz to Revolution Per Minute Converter — Frequency to RPM › Knots To Miles Calculator — Convert Speed to Traveled Distance › Knots To MPH Converter — Convert Nautical Knots to Miles Per Hour › M/s to Fps Converter — Convert Meters per Second to Feet per Second › Mach to Speed Of Sound Converter — Mach to MPH, KM/H, Knots & M/S › Millimeter/Minute to Mm/s Converter — CNC Feed Rate Calculator › Radian Per Second to Revolution Per Minute Converter — rad/s to RPM › RPM To Feet Per Minute Calculator — Surface Speed & Tangential Velocity › Speed Converter — Convert MPH, KM/H, Knots, M/S & FT/S ›

Pressure & Fluid Head (54 tools)

PSI, bar, pascals, torrs, atmospheres, water head & vacuum scales.

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Bar to Feet of Water Converter — bar to ftH₂O Head › Bar to Meters Head Converter — bar to mH₂O Hydrostatic Head › Foot of Head to PSI Converter — Pump Dynamic Head to PSI › GPa to Kilobar Converter — Gigapascal to kbar Conversion › GPa to MPa Converter — Gigapascal to Megapascal Conversion › GPa to N/mm² Converter — Gigapascal to Newton/mm² › Hectopascal to Bar Converter — hPa to Bar Conversion › Hectopascal to PSI Converter — hPa to Pounds per Square Inch › Inch of Water Column to PSIG Converter — inH₂O to Gauge PSI › Kilobar to kN/mm² Converter — kbar to Kilonewton/mm² › Kip/ft² to PSI Converter — KSF to Pounds per Square Inch › kN/m² Converter — Kilonewton/m² to PSI, Bar, kPa & PSF › kN/m² to PSF Converter — Kilonewton/m² to Pounds/ft² › kPa Converter — Kilopascal to PSI, Bar, mmHg & Atm › kPa to Meters of Air Converter — Air Column Head at 0°C › kPa to mmHg Converter — Kilopascal to Millimeters of Mercury › kPa to PSF Converter — Kilopascal to Pounds per Square Foot › kPa to PSI Converter — Kilopascal to Pounds per Square Inch › KSI to MPa Converter — Kilopound per Square Inch to Megapascal › KSI to N/mm² Converter — Kilopound/in² to Newton/mm² › KSI to PSI Converter — Kilopounds to Pounds per Square Inch › Meter of Head to PSI Converter — mH₂O to Pounds/in² › Micron of Mercury to Torr Converter — µmHg to Torr Relationship › Microns of Mercury to PSI Converter — µmHg to PSI Vacuum › Millibar to hPa Converter — mbar to Hectopascal Equivalence › Millibar to Micron of Mercury Converter — mbar to µmHg › Millibar to PSI Converter — mbar to Pounds per Square Inch › Millitorr to Pascal Converter — mTorr to Pa Vacuum Calculator › Millitorr to Torr Converter — mTorr to Torr Vacuum Conversion › mmH₂O to Pascal Converter — Millimeter Water Column to Pa › MN/m² to kPa Converter — Meganewton/m² to Kilopascal › MPa Converter — Megapascal to PSI, Bar, kPa & GPa › MPa to PSI Converter — Megapascal to Pounds per Square Inch › MPa to PSIG Converter — Megapascal to Gauge PSI › N/mm² to MPa Converter — Newton/mm² to Megapascal Equivalence › N/mm² to PSI Converter — Newton/mm² to Pounds per Square Inch › Ounce/in² to PSI Converter — Ounce-Force to Pounds per Square Inch › Pascal to Hectopascal Converter — Pa to hPa Conversion › Pounds-Force to PSI Calculator — Force & Area to Pressure › Pressure Converter — PSI, Bar, Pascal, Atm, Torr & Head › PSF to kgf/m² Converter — Pounds/ft² to Kilogram-Force/m² › PSF to kPa Converter — Pounds per Square Foot to Kilopascals › PSF to Newton/m² Converter — Pounds/ft² to N/m² › PSF to Ton/ft² Converter — Pounds to Short Tons per Square Foot › PSI to Foot of Water Converter — psi to ftH₂O Pressure Head › PSI to Inches of Water Converter — psi to inH₂O Column › PSI to Kip/in² Converter — Pounds/in² to KSI Calculator › PSI to Micron of Mercury Converter — psi to µmHg [0°C] › PSI to N/cm² Converter — Pounds/in² to Newton/Square Centimeter › PSI to Newton/m² Converter — Pounds/in² to N/m² (Pascal) › PSI to PSF Converter — Pounds/in² to Pounds/ft² › PSI to Ton/m² Converter — Pounds/in² to Metric Tonne-Force/m² › PSIG to PSIA Converter — Gauge to Absolute Pressure Calculator › Water Column to PSI Converter — inH₂O, ftH₂O & mmH₂O to PSI ›

Force, Torque & Mechanical (23 tools)

Newtons, foot-pounds, dyne, joules, kilonewtons & mechanical torque.

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Dan to Pound Force Converter — Decanewtons to Pounds-Force › Force & Torque Converter — N, kN, lbf, N·m, ft·lb, in·lb & Horsepower › Gram Force to Newton Converter — gf to N Force Conversion › In * Lb to CM * KG Converter — Inch-Pounds to Centimeter-Kilograms › Inch Lbs to Nm Converter — Inch-Pounds to Newton Meters › Inch Pounds to Foot Pounds Converter — in-lb to ft-lb Torque › KG CM to N M Converter — Kilogram Centimeter to Newton Meter › Kgf/cm to N/cm Converter — Kilogram-Force/cm to Newton/cm › Kilonewton to Pound Force Converter — kN to lbf Conversion › Lb/ft^3 to Kn/m^3 Converter — Density to Specific Weight Conversion › N CM to Lb In Converter — Newton Centimeters to Inch-Pounds › N m to N cm Converter — Newton Meters to Newton Centimeters › N/cm to Pound/inch Converter — Force per Length Conversion › Newton Meter Calculator — Calculate Torque from Force & Lever Arm › Newton to MG Converter — Force to Milligram & Megagram Equivalence › Newton to Tonnes Converter — Force to Equivalent Mass under Gravity › Newtons to Lbs Converter — Newtons to Pounds-Force (N to lbf) › Nm to Ft Lb Converter — Newton Meters to Foot-Pounds Torque › Nm to In Lbs Converter — Newton Meters to Inch-Pounds › Nm to M Conversion — Newton Meters to Lever Arm Distance & Nanometers › Pn to Ton Force [long] Converter — SI Prefix Disambiguation › Ton to Kn Converter — Ton-Force to Kilonewtons Conversion › Torque to Horsepower Converter — Calculate Power from Torque & RPM ›

Energy, Power & Fuel (10 tools)

Watts, horsepower, BTU, kilowatt-hours, joules & fuel burn economy.

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BTU Per Hour to Horsepower Converter — BTU/h to HP Conversion › CCF to Therms Converter — Natural Gas Volume to Heating Energy › Energy, Power & Fuel Converters — Complete Engineering Suite › Fuel Economy Converter — Miles Per Gallon, L/100km & km/L › Joules to Volts Converter — Electrostatic Potential & Capacitance Calculation › Megawatt Hour to Kilowatt Hour Converter — MWh to kWh Conversion › MMBtu to kWh Converter — Million BTU to Kilowatt Hour Conversion › MMBtu/hr to kW Converter — Million BTU/h to Kilowatt Conversion › MPG to km/L Converter — Miles Per Gallon to Kilometers Per Liter › RMS to Watts Calculator — AC Real Power, Voltage & Current Conversion ›

Electrical & Electronics (9 tools)

Volts, amperes, ohms, farads, henries, watts & microelectronics.

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3.5mm to 1/4" Audio Adapter Compatibility Guide & Pinout Converter › Capacitance Conversion Calculator — Universal Capacitance Engine › Electrical & Electronics Converter — Universal Electrical Engineering Hub › Farad to Millifarad Converter — F to mF Capacitance Conversion › Kiloohm to Ohm Converter — kΩ to Ω Resistance Conversion › Microohm to Ohm Converter — µΩ to Ω Resistance Conversion › Microvolt to Volt Converter — µV to V Potential Conversion › Milliohm to Ohm Converter — mΩ to Ω Resistance Conversion › Watts/Volt to mA Converter — Power-to-Current Conversion ›

Chemistry, Moles & Concentration (26 tools)

Molarity, ppm, mcg/mL, normality, molality & dilution calculations.

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C5H8 Moles to Grams Calculator & Molar Mass Tool › Chemistry, Moles & Concentration Converter — Universal Scientific Engine › Kilomoles to Moles Converter (kmol to mol) › mg to mL Calculator for 50 mg/mL Solutions (mg / 50 mg/mL) › Micrograms per Deciliter to Nanograms per Milliliter Converter (µg/dL to ng/mL) › Micrograms per Milliliter to Milligrams per Milliliter Converter (µg/mL to mg/mL) › Micrograms per Milliliter to Nanograms per Microliter Converter (µg/mL to ng/µL) › Micrograms to Milligrams Converter (µg to mg / mcg to mg) › Micrograms to Milliliters Calculator (mcg to mL / µg to mL) › Micromolar to Molar Converter (µM to M) › Micromoles to Moles Converter (µmol to mol) › Milligrams per Liter to Nanograms per Liter Converter (mg/L to ng/L) › Milligrams per Milliliter to Micrograms per Milliliter Converter (mg/mL to µg/mL) › Milligrams per Milliliter to Nanograms per Liter Converter (mg/mL to ng/L) › Millimolar to Micromolar Converter (mM to µM) › Millimolar to Molar Converter (mM to M) › Millimolar to Nanomolar Converter (mM to nM) › Millimoles to Micromoles Converter (mmol to µmol) › Molar Concentration Calculator & Universal Dilution Engine › Moles to Femtomoles Converter (mol to fmol) › Nanograms per Microliter to Milligrams per Milliliter Converter (ng/µL to mg/mL) › Nanograms per Milliliter to Grams per Liter Converter (ng/mL to g/L) › Nanograms per Milliliter to Micrograms per Deciliter Converter (ng/mL to µg/dL) › Nanograms per Milliliter to Micrograms per Milliliter Converter (ng/mL to µg/mL) › Nanomolar to Micromolar Converter (nM to µM) › Nanomolar to Picomoles per Liter Converter (nM to pmol/L) ›

Cooking, Food & Nutrition (11 tools)

Teaspoons, tablespoons, cups, grams, fluid ounces & culinary conversions.

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Cooking, Food & Nutrition Converter › Cups to Teaspoons Converter › Drops to mL Converter › Grams to Calories Calculator › Grams to Cups Converter › Grams to Teaspoons Converter › Milliliters to Teaspoons Converter › Ounces to Tablespoons Converter › Tablespoons to Milligrams Converter › Teaspoons to Milligrams Converter › Teaspoons to Pounds Converter ›

Flow Rate & Fluid Mechanics (14 tools)

LPM, GPM, cubic feet per minute (CFM) & fluid transport dynamics.

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Centipoise to Kilograms per Meter-Second Converter › Centipoise to Millipascal-Seconds Converter › Centipoise to Pascal-Seconds Converter › CFM to Cubic Meters per Hour Converter › CFM to Liters per Minute Converter › Cubic Meters per Minute to CFM Converter › Flow Rate Converter › Gallons per Day to Cubic Millimeters per Minute Converter › Liters per Minute to CFM Converter › Liters per Second to CFM Converter › Liters per Second to Cubic Meters per Minute Converter › Metric Tonnes per Year to Tons per Day Converter › Millipascal-Seconds to Centipoise Converter › Pounds per Hour to Kilograms per Hour Converter ›

Digital, Typography & Graphics (11 tools)

Megabytes, gigabytes, pixels, typography points, picas & DPI.

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Data Transfer Converter › Digital Storage Converter › Digital, Typography & Graphics Converter › Gbps to Gb/s & GB/s Converter › GiB to MiB Converter › HEX, RGB, HSL & Color Converter › Inches to Pixels Converter › Mbps Converter › Pixels to Inches Converter › Sound Pressure Level & Acoustic Converter › Typography Unit Converter ›

Numbers, Money & Pricing (16 tools)

Currency converters, millions, billions, lakhs, crores & discount rates.

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Billion To Trillion Converter › Crore To Lakh Converter › Crore To Million Converter › Dimes To Dollars Converter › Dollar Bill to Cents Converter › Dollars to Cents Converter › Large Number Converter › Million To Billion Converter › Nickels To Dollars Converter › Number To Billion Converter › Numbers & Money Converter › Numbers Converter › Numberstowords Converter › Price Per Liter To Price Per Gallon Converter › Quarters To Dollars Converter › Usd/kilogram to Usd/lb Converter ›

Materials, Hardware & Specialized (16 tools)

AWG wire gauge, hardness, sheet metal thickness, lumber & ring sizes.

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10 mm to 14 mm Adapter Compatibility Checker › 2.5 mm to 3.5 mm Audio Adapter Compatibility Checker › cm to Ring Size Converter › Cord to Quarter Cord Firewood Volume Calculator › Hardness Conversion Calculator › Lumber Volume Converter & Board Foot Calculator › Materials, Hardware & Specialized Engineering Converter Hub › Mesh to Micron Converter › Metric to SAE Converter › Metric Units Converter › Millimeters to Gauge Converter › mm to RCA Adapter Guide & Compatibility Checker › Paper Quantity Calculator & Ream Grammage Converter › Ring Size Centimeters to Millimeters Calculator › SI Prefixes Converter › SWG to mm Calculator ›

Beverages & Packaging (3 tools)

Beer kegs, barrels, packaging cases, bottles & beverage fluid capacity.

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Beer Cases to Individual Bottles or Cans Converter › US Gallons to Beer Barrels Converter › US Quarts to Half-Barrel Kegs Converter ›

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Home All 398+ Tools 19 Categories

Browse Categories (19) ↓

Length, Distance & Height 40 Mass, Weight & Traditional Units 34 Volume & Capacity 19 Mass–Volume & Density 27 Area, Geometry & Angles 7 Temperature 4 Time & Date 21 Speed, Rotation & Motion 10 Pressure & Fluid Head 54 Force, Torque & Mechanical 23 Energy, Power & Fuel 10 Electrical & Electronics 9 Chemistry, Moles & Concentration 26 Cooking, Food & Nutrition 11 Flow Rate & Fluid Mechanics 14 Digital, Typography & Graphics 11 Numbers, Money & Pricing 16 Materials, Hardware & Specialized 16 Beverages & Packaging 3

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