Kilowatt to BTU/Second Converter

Power Converter

22 units available

Decimals:

From

To

0.947817

1 kW = 0.947817 BTU/s

Formula:

BTU/s = kW × 0.9478171203

With your value: 1 kW = 0.94781712 BTU/s

How big is that?

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

LED bulb (1/1.1e+2 your value)0.00900 kW

Laptop (1/15 your value)0.0650 kW

Microwave oven (1.0× your value)1.00 kW

Your value1.00 kW

Electric kettle (3.0× your value)3.00 kW

Family car engine (90× your value)90.0 kW

Other Kilowatt to BTU/Second conversions

2 kW to BTU/s 3 kW to BTU/s 4 kW to BTU/s 5 kW to BTU/s 6 kW to BTU/s 7 kW to BTU/s 8 kW to BTU/s

Kilowatt to BTU/Second Conversion Table

Kilowatt (kW)	BTU/Second (BTU/s)
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

BTU/Second to Kilowatt Conversion Table

BTU/Second (BTU/s)	Kilowatt (kW)
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

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.

Kilowatt (kW)

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 Kilowatt to BTU/Second

To convert from Kilowatt (kW) to BTU/Second (BTU/s), multiply the value by 0.9478171203.

Formula: BTU/s = kW × 0.9478171203

Reverse: kW = BTU/s × 1.0550558526

Step-by-Step Example

Start with your value in Kilowatt. For example: 5 kW
Multiply by the conversion factor: 5 x 0.9478171203
The result is: 4.739086 BTU/s

About Kilowatt

The kilowatt (kW) is a unit of power. One kilowatt equals 1000 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 Kilowatt?

There are exactly 0.9478171203 BTU/Second in 1 Kilowatt. This means the conversion factor from Kilowatt to BTU/Second is 0.9478171203.

What is the formula to convert Kilowatt to BTU/Second?

The formula to convert Kilowatt to BTU/Second is: BTU/s = kW × 0.9478171203. For example, to convert 10 Kilowatt to BTU/Second, you would multiply 10 by 0.9478171203.

What is a Kilowatt?