21 Kilojoules to BTU

Convert 21 kilojoules (kJ) to btu (BTU) with formulas, examples, and conversion tables.

kJ
BTU
21 Kilojoules (kJ) = 19.9040812845 btu (BTU)
Round to:
Step-by-Step Solution
1Write the conversion factor:
1 british thermal unit = 1.05506 Kilojoules
2Divide the value by the conversion factor:
21 ÷ 1.05506 = 19.9040812845
3Result:
21 Kilojoules (kJ) = 19.9040812845 btu (BTU)
↔ BTU to Kilojoules

Kilojoules to BTU Conversion Table

KilojoulesBTU
1 kJ0.947813 BTU
2 kJ1.89563 BTU
3 kJ2.84344 BTU
4 kJ3.79125 BTU
5 kJ4.73907 BTU
10 kJ9.47813 BTU
20 kJ18.9563 BTU
21 kJ19.9041 BTU
50 kJ47.3907 BTU
100 kJ94.7813 BTU

21 Kilojoules in Other Units

Unit21 kJ =
Kilojoules to Joules21000 J
Kilojoules to Megajoules0.021 MJ
Kilojoules to Gigajoules2.1e-5 GJ
Kilojoules to Watt-hours5.83333333333 Wh
Kilojoules to Kilowatt-hours0.00583333333333 kWh
Kilojoules to Megawatt-hours5.83333333333e-6 MWh
Kilojoules to Calories5019.12045889 cal
Kilojoules to Kilocalories5.01912045889 kcal
Kilojoules to BTU19.9040812845 BTU
Kilojoules to Therms0.00019904159527 therm
Kilojoules to Foot-pounds15488.7816967 ft·lb
Kilojoules to Electronvolts1.31071415197e23 eV
Kilojoules to Ergs2.1e11 erg

Related Conversions

5 kJ to BTU10 kJ to BTU20 kJ to BTU20 BTU to kJBTU to Kilojoules ConverterKilojoules to BTU Converter