🔥 CCF to Therms Calculator
Translate natural gas billing units (CCF) into therms, MMBtu, and kilowatt-hours.
Utility bills often show consumption in CCF. This tool converts that to the energy units you use for budgeting, sustainability reports, or rate comparisons.
Enter the total hundred cubic feet from your gas meter or statement.
Typical U.S. natural gas heating value used on billing statements.
120 CCF × 1.037 therms/CCF =
124.44 therms
That is 12.444 MMBtu or 3,646.11 kWh.
Therms
124.44
MMBtu
12.444
kWh Equivalent
3,646.11
How to Use This Calculator
Enter CCF usage
Use the hundred cubic foot reading from your meter or monthly bill.
Select a heating value
Choose a preset or specify the therms-per-CCF factor listed by your utility supplier.
Review energy equivalents
Copy therms, MMBtu, or kWh to compare plans, estimate costs, or track carbon impact.
Formula
Therms = CCF × (Therms per CCF)
MMBtu = Therms ÷ 10
kWh ≈ Therms × 29.3001111
The therms-per-CCF factor depends on gas composition and temperature. Utilities publish their average value monthly.
Use the formula breakdown to confirm the calculation logic or perform the conversion manually if needed.
Full Description
Natural gas utilities often bill in hundred cubic feet (CCF), but rates or regulations may reference therms or MMBtu. The conversion hinges on the heating value—how much energy is contained in each CCF of gas. Selecting an accurate factor ensures your cost comparisons and efficiency calculations stay reliable.
This calculator includes typical heating values and lets you enter a custom one. That way you can align with whatever shows up on your statement or engineering estimate. The output covers therms (common in U.S. billing), MMBtu (used in energy markets), and kilowatt-hours (helpful when comparing electric vs. gas appliances).
Because temperature and gas composition shift slightly over time, always confirm the therms-per-CCF factor from your latest bill when preparing precise financial or environmental reports.
Frequently Asked Questions
Where can I find the therms-per-CCF value for my home?
Check the notes on your natural gas bill—most utilities publish the heating value each month. You can enter that number in the custom field for exact results.
Why does the heating value change?
Gas composition varies by source and season. Utilities blend supplies, which affects energy content. Small fluctuations are normal.
What is a therm?
A therm equals 100,000 BTU, or about 29.3 kilowatt-hours. It represents the energy in a standard amount of natural gas.
How accurate is the kWh estimate?
The conversion uses 1 therm ≈ 29.3001111 kWh. Actual appliance efficiency may differ—this value reflects raw fuel energy, not delivered heat.