Kilojoule/Hour to BTU/Second Converter

Power Converter

22 units available

Decimals:

From

To

0.000263

1 kJ/h = 0.000263 BTU/s

Formula:

BTU/s = kJ/h × 0.0002632825

With your value: 1 kJ/h = 0.00026328 BTU/s

How big is that?

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

Your value1.00 kJ/h

LED bulb (32× your value)32.4 kJ/h

Laptop (2.3e+2× your value)234 kJ/h

Microwave oven (3.6e+3× your value)3.60e+3 kJ/h

Electric kettle (1.1e+4× your value)1.08e+4 kJ/h

Family car engine (3.2e+5× your value)3.24e+5 kJ/h

Other Kilojoule/Hour to BTU/Second conversions

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

Kilojoule/Hour to BTU/Second Conversion Table

Kilojoule/Hour (kJ/h)	BTU/Second (BTU/s)
0.5	0.000132
1	0.000263
2	0.000527
5	0.001316
10	0.002633
15	0.003949
20	0.005266
25	0.006582
50	0.013164
100	0.026328
250	0.065821
500	0.131641
1000	0.263283

BTU/Second to Kilojoule/Hour Conversion Table

BTU/Second (BTU/s)	Kilojoule/Hour (kJ/h)
0.5	1,899.100535
1	3,798.201069
2	7,596.402139
5	18,991.005347
10	37,982.010694
15	56,973.016041
20	75,964.021389
25	94,955.026736
50	189,910.053472
100	379,820.106943
250	949,550.267358
500	1,899,100.534716
1000	3,798,201.069432

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.

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

BTU/Second (BTU/s)

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 Kilojoule/Hour to BTU/Second

To convert from Kilojoule/Hour (kJ/h) to BTU/Second (BTU/s), multiply the value by 0.0002632825.

Formula: BTU/s = kJ/h × 0.0002632825

Reverse: kJ/h = BTU/s × 3,798.201069432

Step-by-Step Example

Start with your value in Kilojoule/Hour. For example: 5 kJ/h
Multiply by the conversion factor: 5 x 0.0002632825
The result is: 0.001316 BTU/s

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.

About BTU/Second

The btu/second (BTU/s) is a unit of power. One btu/second equals 1055.055853 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 BTU/Second are in 1 Kilojoule/Hour?

There are exactly 0.0002632825 BTU/Second in 1 Kilojoule/Hour. This means the conversion factor from Kilojoule/Hour to BTU/Second is 0.0002632825.

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

The formula to convert Kilojoule/Hour to BTU/Second is: BTU/s = kJ/h × 0.0002632825. For example, to convert 10 Kilojoule/Hour to BTU/Second, you would multiply 10 by 0.0002632825.

What is a Kilojoule/Hour?