Convert BTU per Second to Kilowatts

Convert BTU per Second (BTU/s) to Kilowatts (kW) instantly and accurately.

BTU per Second (BTU/s)
Kilowatts (kW)

Conversion Formula

kW = BTU/s × 1.055055853

About BTU per Second

One BTU per second (BTU/s) ≈ 1,055 W - close to 1 kW but slightly larger. Used when heat rates are so high that per-hour or per-minute numbers become unwieldy. In fire protection engineering, large house fires peak at 500-2,000 BTU/s; industrial fires at millions of BTU/s. Blast characterisation for petrochemical safety and large industrial heat exchangers with duties of millions of BTU/h are conveniently expressed in BTU/s. Since 1 BTU/s ≈ 1.055 kW, conversion to SI is straightforward. 1 BTU/s = 1,055.056 W.

About Kilowatts

A kilowatt (kW) is 1,000 W - the everyday unit for home, vehicle, and industrial power. Average US home consumption is ~1.2 kW continuous (~10,500 kWh/year). EV motors range from 30 kW (city cars) to 600+ kW (performance models); a Tesla Model S Performance produces 560 kW (751 hp). Industrial gas turbines on commercial aircraft generate 20,000-100,000 kW. Solar installations are sized in kW-peak. Industrial electric motors span from fractional kW to thousands of kW. 1 kW = 1,000 W = 1.341 hp = 3,412.1 BTU/h.

Quick Reference Table

BTU per Second (BTU/s)Kilowatts (kW)
1 BTU/s1.05506 kW
2 BTU/s2.11011 kW
5 BTU/s5.27528 kW
10 BTU/s10.5506 kW
25 BTU/s26.3764 kW
50 BTU/s52.7528 kW
100 BTU/s105.506 kW

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