104 Btu to Joules

104 Btu ≈ 1.0973e+5 J

Calculation: J = 104 Btu × 1055.06 ≈ 1.0973e+5 J

Btu to Joule Converter

Choose the type of measurement to convert
Select the source unit to convert from
Select the target unit to convert to
Enter a numeric value or fraction to convert
Sig. Figures:

How to Convert Btu to Joule

1 Btu = 1055.06 Joules

Joule = Btu × 1055.06

Example: 104 Btu × 1055.06 = 109730 J

Reverse Conversion

To convert Joules back to Btu:

  • Remember, 1 joule equals 0.000947817 Btu.
  • To convert 109730 J to Btu, multiply 109730 x 0.000947817, resulting in 104 Btu.

104 Btu is also equal to:

  • 109.73 kilojoule
  • 0.030479 kilowatt hour
  • 26.225 calorie (nutritional)
  • 30.479 watt hour
About these units

Btu: British thermal unit (IT) — legacy heat unit based on heating water.

Joule: SI unit of energy: 1 J = 1 N·m = 1 kg·m²·s⁻².

Frequently Asked Questions

How much is 104 Btu in Joules?

104 Btu equals 109730 Joules. This is calculated by multiplying 104 by the conversion factor 1055.06.

What does 104 Btu look like in Joules?

104 Btu (109730 Joules) is heating a cup of water — a kettle uses about 300 Btu.

How do you calculate 104 Btu to Joules?

Multiply 104 by the conversion factor 1055.06. The calculation is 104 × 1055.06 = 109730 Joules. This factor is defined by international measurement standards.

Share This Calculation

104 Btu = 109726 Joules
104 Btu = 109726 Joules — conversion chart

For general conversions between Btu and Joules, see the Btu to Joules converter.

Also convert Btu to:

Conversion factors verified against NIST, BIPM, ISO 80000-4 1 cal_IT = 4.1868 J by definition (BIPM/ITS-90). Last reviewed: April 2026
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.