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Switch to Oilheat Calculator

Trying to compare Oilheat rates to gas rates? You've come to the right place! The only way to really compare the two is to convert your gas bill from cost per therm to cost per gallon, like oil. (A therm is a commercial unit of heat energy generated by about 96.7 cubic feet of natural gas.) So we've designed a handy calculator that takes the mystery out of that confusing gas bill in four easy steps. You'll be able to navigate your way through the adjustments, taxes, surcharges, delivery and service charges on your gas bill in no time and turn your rate into cost-per-gallon so you can make an informed decision.

Sample Bill 1 (Click to expand) Sample Bill 2 (Click to expand)

We've included two sample gas bills at right (click on each one to view an enlarged version). You'll see that we've circled the locations where you'll get the information you need for each step.

Step 1. Your Total Gas Charges

Please enter your total gas charges (includes delivery and service charges) into the box below. These extra charges are included in your cost per therm calculation below.

Total Gas Charges: $

Step 2. Sales Tax

Please enter your sales tax in the box below. We're going to subtract this from your total gas price.

Sales Tax: $

Step 3. Total Therms Used

We're then going to divide the subtotal (the calculated amount above) by the number of therms you've used, to arrive at the price you've paid for each therm.

Number of Therms used:

Step 4. Convert to Gallons

Finally, we'll take this new subtotal from above and multiply it by 1.38. That magic number will convert your cost-per-therm to the cost-per-gallon. Just click Calculate now!

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