⚡ BTU to kW & Watts Converter
Convert BTU/hr to kilowatts, watts, tons of refrigeration, and more — instantly and accurately
| BTU/hr | Watts (W) | Kilowatts (kW) | Tons | Application |
|---|---|---|---|---|
| 1,000 | 293.1 | 0.293 | 0.083 | Small appliance |
| 2,500 | 732.7 | 0.733 | 0.208 | Small heater |
| 5,000 | 1,465 | 1.465 | 0.417 | Window AC / heater |
| 8,000 | 2,345 | 2.345 | 0.667 | Medium window AC |
| 10,000 | 2,931 | 2.931 | 0.833 | Large window AC |
| 12,000 | 3,517 | 3.517 | 1.000 | 1-Ton central AC |
| 18,000 | 5,275 | 5.275 | 1.500 | 1.5-Ton AC |
| 24,000 | 7,034 | 7.034 | 2.000 | 2-Ton AC |
| 36,000 | 10,551 | 10.551 | 3.000 | 3-Ton AC |
| 48,000 | 14,068 | 14.068 | 4.000 | 4-Ton AC |
| 60,000 | 17,584 | 17.584 | 5.000 | Residential furnace |
| 100,000 | 29,307 | 29.307 | 8.333 | Large furnace |
| Kilowatts (kW) | BTU/hr | Watts | Tons |
|---|---|---|---|
| 0.5 | 1,706 | 500 | 0.142 |
| 1.0 | 3,412 | 1,000 | 0.284 |
| 1.5 | 5,118 | 1,500 | 0.426 |
| 2.0 | 6,824 | 2,000 | 0.569 |
| 2.5 | 8,530 | 2,500 | 0.711 |
| 3.0 | 10,236 | 3,000 | 0.853 |
| 3.5 | 11,942 | 3,500 | 0.995 |
| 5.0 | 17,060 | 5,000 | 1.421 |
| 7.5 | 25,591 | 7,500 | 2.132 |
| 10.0 | 34,121 | 10,000 | 2.843 |
| Watts (W) | BTU/hr | kW | Common Use |
|---|---|---|---|
| 100 | 341 | 0.100 | Incandescent bulb |
| 500 | 1,706 | 0.500 | Small heater |
| 750 | 2,559 | 0.750 | Microwave (small) |
| 1,000 | 3,412 | 1.000 | Space heater |
| 1,500 | 5,118 | 1.500 | Space heater (large) |
| 2,000 | 6,824 | 2.000 | Portable AC |
| 3,000 | 10,236 | 3.000 | Oven / dryer |
| 5,000 | 17,060 | 5.000 | Central AC compressor |
| 10,000 | 34,121 | 10.000 | Industrial equipment |
Using utilities to convert BTU to kW, you can easily switch between two different systems of measurement for power and energy that you commonly meet around the whole world. BTU, which is short for British Thermal Unit forms the usual American standard for energy and power. On the contrary, the metric system around the globe favours joules.
When one talks about power itself, one considers BTU per hour, in short BTU/h, and it easily converts to watts or kilowatts, especially when dealing with heat energy.
How to Convert BTU/h to kW
The factor to convert is really simple: 1 BTU/h matches around 0.00029307107 kW. In the opposite sense, 1 kW gives you almost 3,412.14 BTU/h. The watt forms the basic unit of the SI system for power.
One watt matches 0.001 kW or about 3.41 BTU/h. The prefix “kilo” simply multiplies by a thousand, so that 1 kilowatt is made up of 1,000 watts.
To change BTU/h to kW, you multiply the value of BTU/h by 0.000293. For instance, for 15 BTU/h, multlipy it by 0.0002930711 and get 0.0043960661 kW. Here is a bigger sample: convert 12,000 BTU to kW requires multiplying 12,000 by 0.00029307108.
One commonly sees such numbers in air conditioning systems, so a fast conversion method really values the effort.
Convert BTU to kWh uses the same factor, 0.000293. So, if you take 5,000 BTU and multiply by 0.000293, you receive around 1.465 kWh. And vice versa, from kWh to BTU?
Use 3,414 as the multiplier.
Going from kW to BTU/h is also simple. Simply multiply your kW by 3,412.14. When you no the kW output of a heater, multiply that value by 3,412.142 to reach the equal BTU/h.
Details of heaters usually appear in BTU, so that switching between the two systems becomes quite practical.
Some fast samples that are worth recalling: 6 kW matches around 20,478 BTU/h, while 12 kW reaches almost 40,956 BTU/h. At bigger values, 24 kW corresponds to about 81,912 BTU/h and 45 kW to 153,585 BTU/h. A heater of 2,300 watts?
It is 2.3 kW. One finds BTU values on wood stoves, fires and fireplaces always.
Real cases appear commonly where such conversion is useful. Houses that need 35 kW of combined heating match to around 120,000 BTU. More practical than say 30,000 BTU.
A unit of 18,000 BTU/h corresponds to around 5.2 kW, which gives comfortable safety margin. One BTU matches roughly 1.055 kW, and if you divide 20,000 BTU/h by 3.412, you receive almost 5,861 watts. Those conversions help a lot tocompare various heating and cooling systems side by side.
