Kilowatt-hour (thermal) to British Thermal Unit Converter
Energy · unit-converter
Convert Kilowatt-hour (thermal) to British Thermal Unit with fixed input and output units, a step-by-step formula line, and reference tables. Factors are joule-based; food energy uses thermochemical calories. The full Energy Converter also includes MMBtu, toe, thermal kWh, and MeV/GeV.
Calculator
From: Kilowatt-hour (thermal) (kwh_th)
To: British Thermal Unit (btu)
About Kilowatt-hour (thermal)
Kilowatt-hour (thermal) is shown as a thermal-energy label and uses the same joule definition as kWh (3.6 MJ).
About British Thermal Unit
The British thermal unit used here is the IT BTU: ≈ 1,055.056 J. It appears in HVAC, heating equipment, and US engineering data.
How to convert kilowatt-hour (thermal) to british thermal units
1 kilowatt-hour (thermal) is equal to 3412.14163312794199 british thermal unit when both are expressed in joule-equivalents:
1 kwh_th = (3,600,000 J ÷ 1,055.05585262 J) btu = 3412.14163312794199 btu
Each kilowatt-hour (thermal) is defined as 3,600,000 J and each british thermal unit as 1,055.05585262 J in this tool, so one kwh_th equals 3,600,000 ÷ 1,055.05585262 btu = 3412.14163312794199 btu.
Let d(kwh_th) be the numeric amount in Kilowatt-hour (thermal) (kwh_th), and d(btu) the amount in British Thermal Unit (btu). Then:
d(btu) = d(kwh_th) × (3,600,000 / 1,055.05585262)
Equivalently, divide by how many kwh_th fit into one btu (joules per btu divided by joules per kwh_th):
d(btu) = d(kwh_th) ÷ 0.00029307107017
Or: british thermal unit = kilowatt-hour (thermal) ÷ 0.00029307107017
Examples
Example #1: Convert 1 kwh_th to british thermal unit
1 kwh_th = 1 kwh_th × (3,600,000/1,055.05585262) btu = 3412.14163313 btu
1 kwh_th = 1 kwh_th ÷ 0.00029307107017 = 3412.14163313 btu
Example #2: Convert 10 kwh_th to british thermal unit
10 kwh_th = 10 kwh_th × (3,600,000/1,055.05585262) btu = 34121.4163313 btu
10 kwh_th = 10 kwh_th ÷ 0.00029307107017 = 34121.4163313 btu
Summary
To convert Kilowatt-hour (thermal) to British Thermal Unit, multiply the value in kwh_th by the ratio of joules per kwh_th divided by joules per btu. Equivalently: value_btu = value_kwh_th × (3600000 / 1055.05585262). Numerically, 1 kwh_th equals 3412.141633127942 btu.
Relationship context
You are converting between electrical energy (watt-hours) (Kilowatt-hour (thermal)) and US / imperial engineering units (BTU, therm, ft·lb) (British Thermal Units). All values are mapped through joules first. The numeric factor is 3.412142e+3.
Conversion tables
| Kilowatt-hour (thermal) (kwh_th) | British Thermal Unit (btu) |
|---|---|
| 0.1 | 341.214163313 |
| 1 | 3,412.14163313 |
| 2 | 6,824.28326626 |
| 3 | 10,236.4248994 |
| 4 | 13,648.5665325 |
| 5 | 17,060.7081656 |
| 6 | 20,472.8497988 |
| 7 | 23,884.9914319 |
| 8 | 27,297.133065 |
| 9 | 30,709.2746982 |
| Kilowatt-hour (thermal) (kwh_th) | British Thermal Unit (btu) |
|---|---|
| 10 | 34,121.4163313 |
| 20 | 68,242.8326626 |
| 30 | 102,364.248994 |
| 40 | 136,485.665325 |
| 50 | 170,607.081656 |
| 60 | 204,728.497988 |
| 70 | 238,849.914319 |
| 80 | 272,971.33065 |
| 90 | 307,092.746982 |
| 100 | 341,214.163313 |