BTU (International Table) to Kilowatt-hours Converter

1 BTU equals 0.00029307107 kWh, and 1 kWh equals 3,412.1416 BTU. Enter a value in either box to convert btu (international table) to kilowatt-hours and back. Formula: joules = value x unit factor (1 cal = 4.184 J, 1 Wh = 3,600 J, 1 BTU(IT) = 1,055.05585262 J, 1 eV = 1.602176634e-19 J).

· CalcFlow Editorial

1 BTU = 0.00029307107 kWh

Results shown are estimates for informational purposes only. Nothing on CalcFlow is financial, tax, legal, or medical advice. Always consult a qualified professional before making important decisions.

BTU (International Table) to Kilowatt-hours Conversion Table

BTU (International Table)Kilowatt-hours
1 BTU0.00029307107 kWh
2 BTU0.00058614214 kWh
5 BTU0.0014653554 kWh
10 BTU0.0029307107 kWh
50 BTU0.014653554 kWh
100 BTU0.029307107 kWh
500 BTU0.14653554 kWh
1,000 BTU0.29307107 kWh
2,000 BTU0.58614214 kWh

Kilowatt-hours to BTU (International Table) Conversion Table

Kilowatt-hoursBTU (International Table)
1 kWh3,412.1416 BTU
2 kWh6,824.2833 BTU
5 kWh17,060.708 BTU
10 kWh34,121.416 BTU
50 kWh170,607.08 BTU
100 kWh341,214.16 BTU
500 kWh1,706,070.8 BTU
1,000 kWh3,412,141.6 BTU
2,000 kWh6,824,283.3 BTU

Worked example: 10 BTU = 0.0029307107 kWh. A 2,000 kcal day is 2,000 x 4.184 = 8,368 kJ. Running a 1.5 kW heater for 2 hours uses 3 kWh, which is 10.8 MJ.

Need other units? Open the full Energy Converter.

Popular Energy Conversions

Kilocalories (food Calories) to KilojoulesKilojoules to Kilocalories (food Calories)Kilowatt-hours to MegajoulesKilowatt-hours to BTU (International Table)

Formula

joules = value x unit factor (1 cal = 4.184 J, 1 Wh = 3,600 J, 1 BTU(IT) = 1,055.05585262 J, 1 eV = 1.602176634e-19 J)

Understanding Energy Conversion

Energy is measured in joules in the SI system. Electricity bills use kilowatt-hours, nutrition labels use kilocalories (called Calories on food packaging), and heating equipment is often rated in BTU. The thermochemical calorie is exactly 4.184 joules, so one food Calorie (a kilocalorie) is 4,184 joules. The electronvolt, now exactly defined, is used for particles and atoms.

Tips and Best Practices

  • 1One kilowatt-hour equals 3.6 megajoules, or about 3,412 BTU.
  • 2A food Calorie with a capital C is a kilocalorie, or 4.184 kJ.
  • 3Divide kilojoules by 4.184 to get kilocalories.

Real-World Example

A 2,000 kcal day is 2,000 x 4.184 = 8,368 kJ. Running a 1.5 kW heater for 2 hours uses 3 kWh, which is 10.8 MJ.

Common Mistakes to Avoid

  • Mixing calories (cal) with kilocalories (kcal); there is a factor of 1,000.
  • Confusing kilowatts (power) with kilowatt-hours (energy).
  • Using a different BTU definition than the one you are comparing with; several exist.

How to Use

  1. Type a number in the BTU (International Table) box.
  2. The Kilowatt-hours result appears instantly; you can also edit the Kilowatt-hours box to convert backwards.
  3. Use the swap button to reverse the direction and Copy result to copy the answer.

Frequently Asked Questions

Q

How many kilowatt-hours are in 1 BTU?

1 BTU equals 0.00029307107 kWh.
Q

How many btu (international table) are in 1 kWh?

1 kWh equals 3,412.1416 BTU.
Q

What is the formula to convert btu (international table) to kilowatt-hours?

joules = value x unit factor (1 cal = 4.184 J, 1 Wh = 3,600 J, 1 BTU(IT) = 1,055.05585262 J, 1 eV = 1.602176634e-19 J).
Q

How many BTU are in a kWh?

One kilowatt-hour is about 3,412.14 BTU (International Table).

Sources: NIST SP 811 (calorie_th = 4.184 J, BTU_IT, foot-pound force); SI Brochure 2019 (elementary charge 1.602176634e-19 C, so 1 eV exact).

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