Energy and Power Converters
Convert between joules, kilojoules, calories, kilocalories, kilowatt-hours, and BTU.
About Energy and Power Conversion
Energy is a fundamental concept in physics, measuring the capacity to do work. The joule (J) is the SI unit for energy. Other common units include calories (cal) for food energy, kilowatt-hours (kWh) for electricity consumption, and British Thermal Units (BTU) for heating and cooling. Energy conversion is essential for understanding nutrition labels, calculating electricity costs, HVAC system design, and scientific research. Our energy converter provides accurate conversions between all major energy units used worldwide.
All Energy and Power Converters
30 converters
kcal
→
J
Kilocalories to Joules
Kilocalories → Joules
BTU
→
J
British Thermal Units to Joules
British Thermal Units → Joules
kcal
→
kJ
Kilocalories to Kilojoules
Kilocalories → Kilojoules
BTU
→
kcal
British Thermal Units to Kilocalories
British Thermal Units → Kilocalories
J
→
kJ
Joules to Kilojoules
Joules → Kilojoules
J
→
cal
Joules to Calories
Joules → Calories
BTU
→
kWh
British Thermal Units to Kilowatt-hours
British Thermal Units → Kilowatt-hours
kWh
→
BTU
Kilowatt-hours to British Thermal Units
Kilowatt-hours → British Thermal Units
cal
→
BTU
Calories to British Thermal Units
Calories → British Thermal Units
J
→
BTU
Joules to British Thermal Units
Joules → British Thermal Units
kWh
→
kJ
Kilowatt-hours to Kilojoules
Kilowatt-hours → Kilojoules
BTU
→
kJ
British Thermal Units to Kilojoules
British Thermal Units → Kilojoules
Other Categories
WA
Weight and Mass
30 converters
LA
Length and Distance
42 converters
DS
Digital Storage
20 converters
TE
Temperature
6 converters
AR
Area
30 converters
VA
Volume and Capacity
42 converters
TI
Time
42 converters
SA
Speed and Velocity
20 converters
DT
Data Transfer Rate
12 converters
EA
Energy and Power
30 converters
PR
Pressure
30 converters