Therms (thm)	Watt-hours (Wh)
1 thm	29307.11 Wh
2 thm	58614.21 Wh
5 thm	146535.54 Wh
10 thm	293071.07 Wh
25 thm	732677.68 Wh
50 thm	1465355.35 Wh
100 thm	2930710.7 Wh
250 thm	7326776.75 Wh
500 thm	14653553.51 Wh
1000 thm	29307107.02 Wh

Convert Therms to Watt-hours

Convert therms to watt-hours (thm to Wh) with our instant calculator. 1 thm = 29307.107017 Wh. Includes exact formula and reference tables.

How to Convert Therms to Watt-hours (thm to Wh)

1 Therm (thm) is equal to 29307.107017 Watt-hours (Wh). Multiply the therm value by 29307.10702

Quick Answer 1 thm = 29307.107017 Wh

Formula Wh = thm × 29307.10702

Inverse Factor 1 Wh = 0.000034 thm

Unit Definitions & Metrology Context

The SI unit of energy is the joule (J). 1 food calorie (kcal) equals 1,000 small gram-calories, or exactly 4,184 joules.

About Therms (thm): Therm (thm) is a unit in the Energy measurement category. It is widely used in us natural gas utility billing (100,000 btu). Relative to the energy base unit, 1 thm equals 105505585.262 Joules (J).

About Watt-hours (Wh): Watt-hour (Wh) is a unit in the Energy measurement category. It is a standard everyday unit of energy measurement. Relative to the energy base unit, 1 Wh equals 3600 Joules (J).

Need to convert in the opposite direction? Visit our Convert Watt-hours to Therms (Wh to thm) calculator (1 Wh = 0.000034 thm).

Step-by-Step Worked Examples (thm to Wh)

Convert 5 Therms to Watt-hours: Applying the formula (Wh = thm × 29307.10702): starting with 5 thm, multiply the therm value by 29307.10702 to get 146535.5351 Wh.
Convert 10 Therms to Watt-hours: Applying the formula (Wh = thm × 29307.10702): starting with 10 thm, multiply the therm value by 29307.10702 to get 293071.0702 Wh.
Convert 50 Therms to Watt-hours: Applying the formula (Wh = thm × 29307.10702): starting with 50 thm, multiply the therm value by 29307.10702 to get 1465355.3509 Wh.

Popular Energy Conversions

Joule ⇄ Calorie (Gram/Small)

1 thermochemical calorie equals exactly 4.184 joules.

Kilowatt-hour ⇄ Joule

1 kilowatt-hour (kWh) equals exactly 3,600,000 joules (3.6 MJ).

Kilocalorie (Food Calorie) ⇄ Kilojoule

1 food calorie (kcal) equals exactly 4.184 kilojoules (kJ).

British Thermal Unit ⇄ Joule

1 British Thermal Unit (BTU) equals approximately 1,055.06 joules.

Frequently Asked Questions

Verified answers and formulas for converting therms to watt-hours.

How many watt-hours are in 1 therm?

There are 29307.107017 watt-hours (Wh) in 1 therm (thm). Conversely, 1 watt-hour equals 0.000034 therms.

How do you convert therms to watt-hours?

To convert therms (thm) to watt-hours (Wh), use the formula: Wh = thm × 29307.10702. Multiply the therm value by 29307.10702. For example, 10 thm equals 293071.0702 Wh.

How do I convert back from watt-hours to therms?

To convert in the reverse direction from watt-hours (Wh) to therms (thm), use the inverse formula: thm = Wh × 0.00003412141633. Multiply the watt-hour value by 0.00003412141633 (1 Wh = 0.000034 thm).

What is the difference between therm (thm) and watt-hour (Wh)?

Both therm and watt-hour measure energy. Therm (thm) is a unit in the Energy measurement category. It is widely used in us natural gas utility billing (100,000 btu). Relative to the energy base unit, 1 thm equals 105505585.262 Joules (J). Watt-hour (Wh) is a unit in the Energy measurement category. It is a standard everyday unit of energy measurement. Relative to the energy base unit, 1 Wh equals 3600 Joules (J).

What is the difference between a calorie and a kilocalorie (kcal)?

A small calorie (cal) heats 1 gram of water by 1°C. A dietary calorie (food calorie / Calorie / kcal) equals 1,000 small calories or 4.184 kJ.