kW to HP Converter

kW to hp conversion chart

Calculated with the formula above; filter or export as CSV.

Filter chart

kW to hp conversion chart
kW	hp	PS
0.18	0.24138398	0.24473189
0.25	0.33525552	0.3399054
0.37	0.49617817	0.50306
0.55	0.73756215	0.74779189
0.75	1.00576657	1.01971621
1.1	1.4751243	1.49558378
1.5	2.01153313	2.03943243
2.2	2.9502486	2.99116756
3	4.02306627	4.07886485
4	5.36408836	5.43848647
5.5	7.37562149	7.4779189
7.5	10.05766567	10.19716213
11	14.75124299	14.95583779
15	20.11533134	20.39432426
18.5	24.80890866	25.15299992
22	29.50248597	29.91167558
30	40.23066269	40.78864852
37	49.61781732	50.30599984
45	60.34599403	61.18297278
55	73.75621493	74.77918895
75	100.57665672	101.9716213
90	120.69198806	122.36594556
110	147.51242986	149.5583779
132	177.01491583	179.47005348
160	214.56353434	217.53945877
200	268.20441792	271.92432346
250	335.2555224	339.90540433

Formula and method

hp = kW × 1.34102209 kW = hp × 0.745699872 Multiply by the source unit’s SI factor to get W, then divide by the target unit’s SI factor.

Worked example

7.5 kW × 1.34102209 = 10.0577 hp.

Assumptions and limits

Pure unit conversion of shaft or rated power; efficiency is not applied. Use the three-phase power calculator for electrical input.
Results show up to 4 decimals; Copy and CSV keep more digits.

Frequently asked questions

How many hp are in 1 kW?

1 kW = 1.34102209 hp. The factor follows from the SI definitions: 1 hp = 550 ft·lbf/s = 745.69987 W; 1 BTU/h = 1,055.05585262 J ÷ 3,600 s.

How do I convert hp back to kW?

Multiply by 0.745699872 (or divide by 1.34102209), or simply switch “From unit” to hp. For example 10 hp = 7.457 kW.

Which horsepower is on a motor nameplate?

There are three in common use: mechanical hp = 745.69987 W, metric hp (PS) = 735.49875 W and electrical hp = 746 W. US motor nameplates use HP ≈ 746 W, while European and Asian equipment usually quotes PS. They differ by about 1.4%.

References

kW to HP Converter practical guide and common questions

What does kW to HP Converter calculate?

Convert kilowatts to mechanical hp, metric hp (PS), BTU/h and tons of refrigeration, with the IEC standard motor-rating steps. Conversion runs in your browser; factors are from NIST SP 811. hp = kW × 1.34102209 kW = hp × 0.745699872 Multiply by the source unit’s SI factor to get W, then divide by the target unit’s SI factor.

When is this useful?

7.5 kW × 1.34102209 = 10.0577 hp.

How do I enter the inputs?

Enter the inputs for kW to HP Converter: Value, From unit. Calculate, check the units and assumptions, then copy or download the results.

How should I interpret the results?

Pure unit conversion of shaft or rated power; efficiency is not applied. Use the three-phase power calculator for electrical input. Results show up to 4 decimals; Copy and CSV keep more digits.

Where are my inputs processed?

kW to HP Converter runs in this browser. Inputs are not uploaded to a calculation server; copying and CSV download require your action. The existing site analytics and advertising still load.