1180 Btu to Joules

1180 Btu ≈ 1.245e+6 J

Calculation: J = 1180 Btu × 1055.06 ≈ 1.245e+6 J

Btu to Joule Converter

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How to Convert Btu to Joule

1 Btu = 1055.06 Joules

Joule = Btu × 1055.06

Example: 1180 Btu × 1055.06 = 1245000 J

Reverse Conversion

To convert Joules back to Btu:

  • Remember, 1 joule equals 0.000947817 Btu.
  • To convert 1245000 J to Btu, multiply 1245000 x 0.000947817, resulting in 1180 Btu.

1180 Btu is also equal to:

  • 1245 kilojoule
  • 0.34582 kilowatt hour
  • 297.55 calorie (nutritional)
  • 345.82 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 1180 Btu in Joules?

1180 Btu equals 1245000 Joules. This is calculated by multiplying 1180 by the conversion factor 1055.06.

What does 1180 Btu look like in Joules?

1180 Btu (1245000 Joules) is a small space heater output per hour.

How do you calculate 1180 Btu to Joules?

Multiply 1180 by the conversion factor 1055.06. The calculation is 1180 × 1055.06 = 1245000 Joules. This factor is defined by international measurement standards.

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1180 Btu = 1244970 Joules
1180 Btu = 1244970 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.