How to convert BTU per gallon to BTU per cubic foot
BTU/ft³ = BTU/gal × 7.480519481Multiply the value in BTU per gallon by 7.480519481. To go the other way, multiply by 0.1336805556 (or divide by 7.480519481).
A BTU per US gallon is larger than a BTU per cubic foot: one BTU per US gallon contains 7.480519481 BTU per cubic foot.
Worked examples
- 1 BTU per US gallon1 BTU/gal × 7.480519481 = 7.480519481 BTU/ft³
- 5 BTU per gallon5 BTU/gal × 7.480519481 = 37.4025974 BTU/ft³
- 10 BTU per gallon10 BTU/gal × 7.480519481 = 74.80519481 BTU/ft³
- 20 BTU per gallon20 BTU/gal × 7.480519481 = 149.6103896 BTU/ft³
- 100 BTU per gallon100 BTU/gal × 7.480519481 = 748.0519481 BTU/ft³
BTU per gallon to BTU per cubic foot conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| BTU per gallon (BTU/gal) | BTU per cubic foot (BTU/ft³) |
|---|---|
| 0.1 BTU/gal | 0.74805195 BTU/ft³ |
| 0.25 BTU/gal | 1.8701299 BTU/ft³ |
| 0.5 BTU/gal | 3.7402597 BTU/ft³ |
| 1 BTU/gal | 7.4805195 BTU/ft³ |
| 2 BTU/gal | 14.961039 BTU/ft³ |
| 3 BTU/gal | 22.441558 BTU/ft³ |
| 4 BTU/gal | 29.922078 BTU/ft³ |
| 5 BTU/gal | 37.402597 BTU/ft³ |
| 6 BTU/gal | 44.883117 BTU/ft³ |
| 7 BTU/gal | 52.363636 BTU/ft³ |
| 8 BTU/gal | 59.844156 BTU/ft³ |
| 9 BTU/gal | 67.324675 BTU/ft³ |
| 10 BTU/gal | 74.805195 BTU/ft³ |
| BTU per gallon (BTU/gal) | BTU per cubic foot (BTU/ft³) |
|---|---|
| 12 BTU/gal | 89.766234 BTU/ft³ |
| 15 BTU/gal | 112.20779 BTU/ft³ |
| 20 BTU/gal | 149.61039 BTU/ft³ |
| 25 BTU/gal | 187.01299 BTU/ft³ |
| 30 BTU/gal | 224.41558 BTU/ft³ |
| 40 BTU/gal | 299.22078 BTU/ft³ |
| 50 BTU/gal | 374.02597 BTU/ft³ |
| 75 BTU/gal | 561.03896 BTU/ft³ |
| 100 BTU/gal | 748.05195 BTU/ft³ |
| 250 BTU/gal | 1,870.1299 BTU/ft³ |
| 500 BTU/gal | 3,740.2597 BTU/ft³ |
| 1,000 BTU/gal | 7,480.5195 BTU/ft³ |
About the units
BTU per US gallon (BTU/gal)
The BTU per US gallon (BTU/gal) is a unit of fuel efficiency by volume in the US customary system. One BTU per US gallon equals 278,716.2699 joules per cubic meter (J/m³).
BTU per cubic foot (BTU/ft³)
The BTU per cubic foot (BTU/ft³) is a unit of fuel efficiency by volume in the US customary system. One BTU per cubic foot equals 37,258.94581 joules per cubic meter (J/m³).
Frequently asked questions
How many BTU per cubic foot are in one BTU per US gallon?
There are 7.480519481 BTU per cubic foot in one BTU per US gallon, and this value is exact by definition.
How do I convert BTU per gallon to BTU per cubic foot?
Multiply the number of BTU per gallon by 7.480519481. For example, 10 BTU/gal × 7.480519481 = 74.80519481 BTU/ft³.
How many BTU per gallon are in one BTU per cubic foot?
One BTU per cubic foot equals 0.1336805556 BTU per gallon. That is the reverse factor, 1 ÷ 7.480519481.
What is 10 BTU per gallon in BTU per cubic foot?
10 BTU/gal = 74.80519481 BTU/ft³.
Is this BTU/gal to BTU/ft³ converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.