Therms (thm)	Calories (cal)
1 thm	25216440.07 cal
2 thm	50432880.14 cal
5 thm	126082200.36 cal
10 thm	252164400.72 cal
25 thm	630411001.8 cal
50 thm	1260822003.61 cal
100 thm	2521644007.22 cal
250 thm	6304110018.04 cal
500 thm	12608220036.1 cal
1000 thm	25216440072.2 cal

Convert Therms to Calories

Convert therms to calories (thm to cal) with our instant calculator. 1 thm = 25216440.07218 cal. Includes exact formula and reference tables.

How to Convert Therms to Calories (thm to cal)

1 Therm (thm) is equal to 25216440.07218 Calories (cal). Multiply the therm value by 25216440.07

Quick Answer 1 thm = 25216440.07218 cal

Formula cal = thm × 25216440.07

Inverse Factor 1 cal = 0 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 Calories (cal): Calorie (Gram/Small) (cal) is a unit in the Energy measurement category. It is a standard everyday unit of energy measurement. Relative to the energy base unit, 1 cal equals 4.184 Joules (J).

Need to convert in the opposite direction? Visit our Convert Calories to Therms (cal to thm) calculator (1 cal = 0 thm).

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

Convert 5 Therms to Calories: Applying the formula (cal = thm × 25216440.07): starting with 5 thm, multiply the therm value by 25216440.07 to get 126082200.3609 cal.
Convert 10 Therms to Calories: Applying the formula (cal = thm × 25216440.07): starting with 10 thm, multiply the therm value by 25216440.07 to get 252164400.7218 cal.
Convert 50 Therms to Calories: Applying the formula (cal = thm × 25216440.07): starting with 50 thm, multiply the therm value by 25216440.07 to get 1260822003.609 cal.

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 calories.

How many calories are in 1 therm?

There are 25216440.07218 calories (cal) in 1 therm (thm). Conversely, 1 calorie (gram/small) equals 0 therms.

How do you convert therms to calories?

To convert therms (thm) to calories (cal), use the formula: cal = thm × 25216440.07. Multiply the therm value by 25216440.07. For example, 10 thm equals 252164400.7218 cal.

How do I convert back from calories to therms?

To convert in the reverse direction from calories (cal) to therms (thm), use the inverse formula: thm = cal × 3.965666831e-8. Multiply the calorie (gram/small) value by 3.965666831e-8 (1 cal = 0 thm).

What is the difference between therm (thm) and calorie (gram/small) (cal)?

Both therm and calorie (gram/small) 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). Calorie (Gram/Small) (cal) is a unit in the Energy measurement category. It is a standard everyday unit of energy measurement. Relative to the energy base unit, 1 cal equals 4.184 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.