Joules (J) to Therms (US) Converter
Enter a value to instantly convert between energy units.
1 Joule = 9.4804e-9 Therm (US)
Key Formulas
Kilocalorie → Kilojoule
kJ = kcal × 4.184Kilojoule → Kilocalorie
kcal = kJ × 0.239006Kilowatt-Hour → Joule
J = kWh × 3600000Joule → Kilowatt-Hour
kWh = J × 2.77778e-7Formula
therm = J ÷ 105480400A US therm equals exactly 100,000 BTU or about 105.48 megajoules. Natural gas in the US is typically billed by the therm — a typical household might use 100 therms per month. Converting joules to therms means dividing by 105,480,400.
Source: NIST SP 811, Table B.8
Frequently Asked Questions
Real-World Examples
A utility engineer verifying that 105,480,400 J equals exactly 1 therm for the billing system.
105480400 J = 1 thm
A factory calculating 10 therms of natural gas consumption per hour converts to 1,054,804,000 J for the report.
1054804000 J = 10 thm
A homeowner estimating 0.5 therms of gas used in a day records 52,740,200 J in the energy log.
52740200 J = 0.5 thm
A chef's stove using 2,110,000 J of gas per hour equals 0.02 therms — for the gas bill estimate.
2110000 J = 0.02 thm