Energy Calculators

Convert from:

atomic unit of energy [Eh] atomic unit of energy [Eh]
barrel of oil barrel of oil
BTU [59°F, British Thermal Unit] BTU [59°F, British Thermal Unit]
BTU [international, British Thermal Unit] BTU [international, British Thermal Unit]
BTU [ISO, British Thermal Unit] BTU [ISO, British Thermal Unit]
BTU [mean, British Thermal Unit] BTU [mean, British Thermal Unit]
BTU [thermochemical, British Thermal Unit] BTU [thermochemical, British Thermal Unit]
calorie [cal] [15°C] calorie [cal] [15°C]
calorie [cal] [20°C] calorie [cal] [20°C]
calorie [cal] [international 1929] calorie [cal] [international 1929]
calorie [cal] [international 1956] calorie [cal] [international 1956]
calorie [cal] [international] calorie [cal] [international]
calorie [cal] [mean] calorie [cal] [mean]
calorie [cal] [thermochemical] calorie [cal] [thermochemical]
celsius heat unit [CHU] [thermochemical] celsius heat unit [CHU] [thermochemical]
cubic foot of atmosphere cubic foot of atmosphere
cubic foot of natural gas cubic foot of natural gas
cubic meter of atmosphere cubic meter of atmosphere
cubic yard of atmosphere cubic yard of atmosphere
electronvolt [eV] electronvolt [eV]
erg [erg] [CGS] erg [erg] [CGS]
foot pound [ft lbf] foot pound [ft lbf]
foot-pound force [ft lbf] foot-pound force [ft lbf]
foot-poundal [ft pdl] foot-poundal [ft pdl]
gallon atmosphere [gal atm] [imperial] gallon atmosphere [gal atm] [imperial]
gallon atmosphere [gal atm] [US] gallon atmosphere [gal atm] [US]
hartree [Eh] hartree [Eh]
horsepower hour [hp h] horsepower hour [hp h]
inch-pound force [in lbf] inch-pound force [in lbf]
joule [J] joule [J]
kilocalorie kilocalorie
kilojoule kilojoule
large calorie [Gcal] large calorie [Gcal]
liter atmosphere [l atm] liter atmosphere [l atm]
megajoule megajoule
millijoule millijoule
quad quad
rydberg [Ry] rydberg [Ry]
therm [EC] therm [EC]
therm [US] therm [US]
thermie thermie
ton of coal ton of coal
ton of oil ton of oil
ton of tnt [tTNT] ton of tnt [tTNT]
watt hour [Wh] watt hour [Wh]
Acceleration
Angle
Angular Acceleration
Angular Speed
Area
Concentration (molar)
Concentration Mass
Data Storage with BinaryPrefixes
Data Storagewith SI Prefixes
Data Transfer Speed with Binary Prefixes
Data Transfer Speed with SI Prefixes
Density
Electric Current
Electric Potential
Electrical Capacitance
Electrical Charge
Electrical Conductance
Electrical Resistance
Energy
Flow Rate (mass)
Flow Rate (mole)
Flow Rate (volume)
Force
Frequency
Fuel Efficiency (mass)
Fuel Efficiency (volume)
Illuminance
Inductance
Length / Distance
Luminance
Luminous Intensity
Mass
Power
Prefix (Binary)
Prefix (SI)
Pressure
Radioactivity
Speed / Velocity
Time
Torque
Viscosity (Dynamic)
Viscosity (Kinematic)
Volume
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