RV Propane Calculator
Free propane usage calculator - estimate how long your RV propane tank will last. Calculate burn rate for furnace, water heater, stove and fridge by BTU rating.
PROPANE CALC
Your Propane Tank
Your Appliances
Check appliances and enter hours per day:
| Appliance | BTU/hr | Hours/Day | Runtime |
|---|
Estimated Runtime
Total BTU/Day
0
Tank Lasts
-- days
Daily Use
-- lbs
Propane Quick Reference
Tank Sizes
| Tank Size | Gallons | BTU Capacity |
|---|---|---|
| 20 lb (BBQ size) | 4.7 gal | ~430,000 BTU |
| 30 lb | 7 gal | ~645,000 BTU |
| 40 lb | 9.4 gal | ~860,000 BTU |
Typical BTU Ratings
- RV Furnace: 16,000-35,000 BTU/hr (runs in cycles)
- Water Heater: 6,000-12,000 BTU/hr
- Stovetop Burner: 5,000-10,000 BTU/hr
- Absorption Fridge: 1,500-2,000 BTU/hr (continuous)
Propane Facts
- 1 gallon of propane = 91,500 BTU
- 1 lb of propane = ~21,500 BTU
- Tanks should only be filled to 80% for expansion
For educational purposes only — full disclaimer ↓