Ivan Gavrilov/CalcKit: All-in-One Calculator

Meter/second 
Kilometer/hour 
Mile/hour 
Foot/second 
Knot 
Knot (UK) 
Mach 
Speed of Light

Celsius 
Fahrenheit 
Kelvin 
Rankine 
Delisle 
Réaumur 
Rømer

Hours 
Days 
Weeks 
Months 
Years 
Decades 
Centuries 
Millenniums

Liter 
Deciliter 
Milliliter 
Meter³ 
Centimeter³ 
Yard³ 
Foot³ 
Inch³ 
Barrel (US) 
Barrel (UK)

Kilometer / s² 
Meter / s² 
Millimeter / s² 
Micrometer / s² 
Nanometer / s² 
Mile / s² 
Yard / s² 
Foot / s² 
Inch / s² 
Gal 
Galileo 
Acceleration of gravity

Revolution / s² 
Revolution / min² 
Radian / s² 
Radian / min²

Duct Shape 
Duct Dimensions 
Unit 
Width 
Height 
LFM 
Meters / second 
Miles / hour 
CFM 
Meters³ / hour 
Liters / second 
Circular, Rectangular

Kilogram / meter³ 
Gram / meter³ 
Milligram / meter³ 
Kilogram / liter 
Gram / liter 
Milligram / liter 
Microgram / liter 
Pound / inch³ 
Pound / foot³ 
Pound / yard³ 
Pound / gallon (US) 
Pound / gallon (UK) 
Ounce / inch³ 
Ounce / foot³ 
Ounce / gallon (US) 
Ounce / gallon (UK) 
Ton / yard³ (Short) 
Ton / yard³ (Long) 
Slug / foot³ 
Psi / 1000 feet 
Earth's density (mean)

Kilogram-meter² 
Kilogram-centimeter² 
Kilogram-millimeter² 
Gram-centimeter² 
Gram-millimeter² 
Pound-foot² 
Pound-inch² 
Ounce-inch² 
Slug-foot²

Meter³ / kilogram 
Centimeter³ / gram 
Liter / kilogram 
Liter / gram 
Foot³ / kilogram 
Foot³ / pound 
Gallon / pound (US) 
Gallon / pound (UK)

Kilonewton meter 
Newton meter 
Millinewton meter 
Dyne meter 
Gram-force meter 
Pound-force inch 
Ounce-force foot 
Ounce-force inch 
Poundal inch

Radian / second 
Radian / minute 
Radian / hour 
Radian / day 
Degree / second 
Degree / minute 
Degree / hour 
Degree / day 
Revolution / second 
Revolution / minute 
Revolution / hour 
Revolution / day

Megacoulomb 
Kilocoulomb 
Coulomb 
Millicoulomb 
Microcoulomb 
Ampere-second 
Ampere-minute 
Ampere-hour 
Abcoulomb 
EMU of charge 
ESU of charge 
Statcoulomb 
Franklin 
Elementary charge

Kiloampere 
Ampere 
Milliampere 
Microampere 
Biot 
Abampere 
EMU of current 
ESU of current 
Statampere

Megasiemens 
Kilosiemens 
Siemens 
Millisiemens 
Microsiemens 
Ampere / volt 
Absiemens 
Statsiemens 
Quantized Hall conductance

Siemens / meter 
Absiemens / meter 
Statsiemens / meter

Kilovolt / meter 
Volt / meter 
Millivolt / meter 
Microvolt / meter 
Kilovolt / centimeter 
Volt / centimeter 
Kilovolt / inch 
Volt / inch 
Volt / mil 
Abvolt / centimeter 
Statvolt / centimeter 
Statvolt / inch 
Newton / coulomb

Kilovolt 
Volt 
Millivolt 
Microvolt 
Watt / ampere 
Abvolt 
EMU of electric potential 
Statvolt 
ESU of electric potential

Megaohm 
Kiloohm 
Ohm 
Milliohm 
Microohm 
Volt / ampere 
Abohm 
EMU of resistance 
Statohm 
ESU of resistance 
Quantized Hall resistance

Ohm-meter 
Ohm-centimeter 
Ohm-inch 
Microohm-centimeter 
Microohm-inch 
Abohm-centimeter 
Statohm-centimeter 
Circular-mil-ohm / foot