320 Btu to Joules

320 Btu ≈ 3.3762e+5 J

Calculation: J = 320 Btu × 1055.06 ≈ 3.3762e+5 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: 320 Btu × 1055.06 = 337620 J

Reverse Conversion

To convert Joules back to Btu:

  • Remember, 1 joule equals 0.000947817 Btu.
  • To convert 337620 J to Btu, multiply 337620 x 0.000947817, resulting in 320 Btu.

320 Btu is also equal to:

  • 337.62 kilojoule
  • 0.093783 kilowatt hour
  • 80.693 calorie (nutritional)
  • 93.783 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 320 Btu in Joules?

320 Btu equals 337620 Joules. This is calculated by multiplying 320 by the conversion factor 1055.06.

What does 320 Btu look like in Joules?

320 Btu (337620 Joules) is heating a cup of water — a kettle uses about 300 Btu.

How do you calculate 320 Btu to Joules?

Multiply 320 by the conversion factor 1055.06. The calculation is 320 × 1055.06 = 337620 Joules. This factor is defined by international measurement standards.

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320 Btu = 337618 Joules
320 Btu = 337618 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.