Energy conversions

Utility bills, nutrition labels and appliance ratings. Strong advertiser interest.

Every energy unit

Relative to one joule.

Unit	Symbol	1 J equals
Joules	J	—
Kilojoules	kJ	0.001
Calories	cal	0.239006
Kilocalories	kcal	0.000239
Watt hours	Wh	0.000278
Kilowatt hours	kWh	2.7778 × 10^-7
BTU	BTU	0.000948
Foot-pounds	ft·lb	0.737562
Electronvolts	eV	6.2415 × 10^18

All energy conversions

72 pages, grouped by starting unit.

From joules

J → kJ J → cal J → kcal J → Wh J → kWh J → BTU J → ft·lb J → eV

From kilojoules

kJ → J kJ → cal kJ → kcal kJ → Wh kJ → kWh kJ → BTU kJ → ft·lb kJ → eV

From calories

cal → J cal → kJ cal → kcal cal → Wh cal → kWh cal → BTU cal → ft·lb cal → eV

From kilocalories

kcal → J kcal → kJ kcal → cal kcal → Wh kcal → kWh kcal → BTU kcal → ft·lb kcal → eV

From watt hours

Wh → J Wh → kJ Wh → cal Wh → kcal Wh → kWh Wh → BTU Wh → ft·lb Wh → eV

From kilowatt hours

kWh → J kWh → kJ kWh → cal kWh → kcal kWh → Wh kWh → BTU kWh → ft·lb kWh → eV

From BTU

BTU → J BTU → kJ BTU → cal BTU → kcal BTU → Wh BTU → kWh BTU → ft·lb BTU → eV

From foot-pounds

ft·lb → J ft·lb → kJ ft·lb → cal ft·lb → kcal ft·lb → Wh ft·lb → kWh ft·lb → BTU ft·lb → eV

From electronvolts

eV → J eV → kJ eV → cal eV → kcal eV → Wh eV → kWh eV → BTU eV → ft·lb

Other families

Length Weight & mass Volume Temperature Area Speed Data & storage Power Pressure Time Angle

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