BTU/Hour to Kilojoule/Hour Converter

Power Converter

22 units available

Decimals:

From

To

1.055056

1 BTU/h = 1.055056 kJ/h

Formula:

kJ/h = BTU/h × 1.0550558526

With your value: 1 BTU/h = 1.05505585 kJ/h

How big is that?

Everyday references on a logarithmic scale, all expressed in btu/hour so you can sanity-check the result.

Your value1.00 BTU/h

LED bulb (31× your value)30.7 BTU/h

Laptop (2.2e+2× your value)222 BTU/h

Microwave oven (3.4e+3× your value)3.41e+3 BTU/h

Electric kettle (1.0e+4× your value)1.02e+4 BTU/h

Family car engine (3.1e+5× your value)3.07e+5 BTU/h

Other BTU/Hour to Kilojoule/Hour conversions

2 BTU/h to kJ/h 3 BTU/h to kJ/h 4 BTU/h to kJ/h 5 BTU/h to kJ/h 6 BTU/h to kJ/h 7 BTU/h to kJ/h 8 BTU/h to kJ/h

BTU/Hour to Kilojoule/Hour Conversion Table

BTU/Hour (BTU/h)	Kilojoule/Hour (kJ/h)
0.5	0.527528
1	1.055056
2	2.110112
5	5.275279
10	10.550559
15	15.825838
20	21.101117
25	26.376396
50	52.752793
100	105.505585
250	263.763963
500	527.527926
1000	1,055.055853

Kilojoule/Hour to BTU/Hour Conversion Table

Kilojoule/Hour (kJ/h)	BTU/Hour (BTU/h)
0.5	0.473909
1	0.947817
2	1.895634
5	4.739086
10	9.478171
15	14.217257
20	18.956342
25	23.695428
50	47.390856
100	94.781712
250	236.95428
500	473.90856
1000	947.81712

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

BTU/Hour (BTU/h)

Power

Exact conversion

Derived from the watt (1 W = 1 J/s).

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Kilojoule/Hour (kJ/h)

Power

Exact conversion

Derived from the watt (1 W = 1 J/s).

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert BTU/Hour to Kilojoule/Hour

To convert from BTU/Hour (BTU/h) to Kilojoule/Hour (kJ/h), multiply the value by 1.0550558526.

Formula: kJ/h = BTU/h × 1.0550558526

Reverse: BTU/h = kJ/h × 0.9478171203

Step-by-Step Example

Start with your value in BTU/Hour. For example: 5 BTU/h
Multiply by the conversion factor: 5 x 1.0550558526
The result is: 5.275279 kJ/h

About BTU/Hour

The btu/hour (BTU/h) is a unit of power. One btu/hour equals 0.2930710702 watts. UnitConvertLab converts it against every other power unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: power calculations, engineering and science, education.

About Kilojoule/Hour

The kilojoule/hour (kJ/h) is a unit of power. One kilojoule/hour equals 0.2777777778 watts. UnitConvertLab converts it against every other power unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: power calculations, engineering and science, education.

Frequently Asked Questions

How many Kilojoule/Hour are in 1 BTU/Hour?

There are exactly 1.0550558526 Kilojoule/Hour in 1 BTU/Hour. This means the conversion factor from BTU/Hour to Kilojoule/Hour is 1.0550558526.

What is the formula to convert BTU/Hour to Kilojoule/Hour?

The formula to convert BTU/Hour to Kilojoule/Hour is: kJ/h = BTU/h × 1.0550558526. For example, to convert 10 BTU/Hour to Kilojoule/Hour, you would multiply 10 by 1.0550558526.

What is a BTU/Hour?