Femtowatt-hours to therms equation
To convert femtowatt-hours to therms:
Multiply the number of femtowatt-hours by 3.412128220196008e-20
About femtowatt-hours
One femtowatt-hour is equal to a quadrillionth watt-hours
About therms
One therm is 100,000 British thermal units (Btu) — however, the definition of Btu differs globally — the standard therm is based on the ISO definition of a Btu — it is used primarily in the EU.