Marks Calc

kilowatt-hours to therms

Convert kilowatt-hour to therm — instant, free, with the formula shown.

1 kWh=0.034121 thm

How to convert kilowatt-hour to therm

To convert kilowatt-hour to therm, multiply by 0.03412142:

thm = kWh × 0.03412142

For example, 10 kWh × 0.034121 = 0.341214 thm.

kWh to thm conversion table

kilowatt-hours (kWh)therms (thm)
1 kWh0.034121 thm
2 kWh0.068243 thm
5 kWh0.170607 thm
10 kWh0.341214 thm
25 kWh0.853035 thm
50 kWh1.706071 thm
100 kWh3.412142 thm
250 kWh8.530354 thm
500 kWh17.060708 thm
1000 kWh34.121416 thm
Reverse: Therm to Kilowatt-hour

Other kilowatt-hour conversions

Convert to therm from another unit

kWh to thm — frequently asked

How many therms are in 1 kilowatt-hour?

1 kilowatt-hour = 0.034121 therms (kWh × 0.034121 = thm).

What is the formula to convert kilowatt-hour to therm?

Multiply your kilowatt-hour value by 0.03412142 to get therm.

How do I convert 10 kilowatt-hours to therms?

10 kWh = 0.341214 thm. For 100 kWh the answer is 3.412142 thm. Use the calculator on this page for any other value.

When to convert kilowatt-hour to therm

1Electricity bills (kWh)
2Nutrition labels (kcal / food cal)
3HVAC and heating (BTU, therms)
4Physics and chemistry (J, eV)

Energy conversion — common questions

Is a food calorie the same as a calorie?

No — a food 'Calorie' (capital C) actually means 1 kilocalorie = 1,000 small calories = 4,184 J. Nutrition labels typically write 'cal' meaning kcal.

How many joules in 1 kWh?

1 kWh = 3,600,000 J (3.6 MJ). Because 1 kW × 1 hour = 1,000 W × 3,600 s = 3,600,000 J.

What is a BTU?

British Thermal Unit — the energy required to raise 1 pound of water by 1 °F. 1 BTU ≈ 1,055 J.

See all energy converters