British thermal units (IT) to US therms

1 BTU ≈ 0.00001 therm (US). Edit either value to convert instantly.

Value

From

1 BTU≈therm (US)

≈ 1,055.06 J

Decimal places

Conversion formula

therm (US) = BTU × (1,055.05585262) × (1 / 105,480,400)

1 BTU ≈ 0.0000100024 therm (US)

British thermal unit (IT) (BTU)

British thermal unit (IT) is a unit of energy: 1 BTU = 1,055.05585262 J. Uses the International Table definition (IT), not the thermochemical BTU.

Source: NBSIR 81-2401, Appendix A3.2: International Table British thermal unit

US therm (therm (US))

US therm is a unit of energy: 1 therm (US) = 105,480,400 J. This is the US therm; the EC therm is 105,506,000 J and the IT therm is 105,505,585.262 J.

Source: NIST SP 811, Appendix B.9: conversion factors by quantity

Conversion table

BTU	therm (US)
	≈ 0.0000100024
	≈ 0.0000200048
	≈ 0.0000500119
	≈ 0.000100024
	≈ 0.000150036
	≈ 0.000200048
	≈ 0.00025006
	≈ 0.000300072
	≈ 0.000400096
	≈ 0.000450107

BTU	therm (US)
	≈ 0.000500119
	≈ 0.000600143
	≈ 0.000700167
	≈ 0.000800191
	≈ 0.000900215
	≈ 0.00100024
	≈ 0.00150036
	≈ 0.00160038
	≈ 0.00170041
	≈ 0.00180043

Frequently asked questions

How many US therms are in 1 British thermal unit (IT)?

1 BTU ≈ 0.00001 therm (US). therm (US) = BTU × (1,055.05585262) × (1 / 105,480,400)

How do I convert BTU to therm (US)?

therm (US) = BTU × (1,055.05585262) × (1 / 105,480,400)

Is 1 British thermal unit (IT) bigger than 1 US therm?

1 BTU ≈ 0.00001 therm (US).

Related conversions

Reverse conversion: US therms to British thermal units (IT)