Watts to BTU Converter

Watts to BTU Converter

BTU/hr
—
Kilowatts
—
1 W = 3.41214 BTU/hr · 1 kW = 3412.14 BTU/hr

How to convert watts to BTU

To convert watts to BTU per hour, multiply by 3.41214. For example, 1000 W × 3.41214 = 3412.14 BTU/hr. Going the other way, divide BTU/hr by 3.41214 to get watts.

To convert watts to kilowatts, divide by 1000. So 1000 W ÷ 1000 = 1 kW.

1 W = 3.41214 BTU/hr. 1 kW = 3412.14 BTU/hr. BTU/hr is used in the US for rating air conditioners and heating systems. Watts are the international standard unit of power.

Watts to BTU/hr conversion table

Watts (W) BTU/hr Common reference
100 W341.2 BTU/hrlight bulb
500 W1706.1 BTU/hrsmall heater
1000 W (1 kW)3412.1 BTU/hr1 kW heater
1465 W5000 BTU/hrsmall AC unit
2000 W (2 kW)6824.3 BTU/hrspace heater
3517 W12,000 BTU/hr1 ton AC
5000 W (5 kW)17,060.7 BTU/hrlarge heater
10,000 W (10 kW)34,121.4 BTU/hrindustrial heater

Frequently asked questions

How many BTU/hr is 1 watt?
1 watt = 3.41214 BTU/hr. 1 kW = 3412.14 BTU/hr.
How many watts is 5000 BTU?
5000 BTU/hr = 1465.35 watts. This is a typical small window air conditioner size.
How many BTU is 1 ton of AC?
1 ton of AC = 12,000 BTU/hr = 3516.85 watts = 3.517 kW.
How many watts is 12000 BTU?
12,000 BTU/hr = 3516.85 watts = 3.517 kW. This is 1 ton of cooling capacity.
How many BTU is 2000 watts?
2000 watts = 6824.28 BTU/hr. Calculation: 2000 × 3.41214 = 6824.28 BTU/hr.