Last verified 2026
40lb Propane Tank Refill Cost: 2026 RV and Forklift Tank Pricing
$30-40
Typical refill cost
9.4 gal
Propane delivered
~11.8 gal
Cylinder liquid capacity
Refill only
No exchange option
40lb Tank Specifications and Use Cases
| Propane when properly filled | 40 lb / ~9.4 gallons |
| Cylinder liquid capacity | ~11.8 gallons (OPD valve stops at 80% = the 40 lb fill) |
| Typical refill cost (2026) | $30-40 at retail stations |
| Use cases | Large RV motorhomes, forklifts, construction heaters, generators |
| Retailers that accept 40lb | Tractor Supply, U-Haul (most locations) |
| Exchange availability | Not available - exchange only carries 20lb tanks |
| Weight empty | ~27 lb |
| Weight full | ~67 lb |
Refill Costs by Retailer
| Retailer | 40lb Cost | Notes |
|---|---|---|
| U-Haul | $28-37 | Most locations accept 40lb. By gallon. |
| Tractor Supply | $32-40 | 2,200+ stores. By gallon. Call ahead for 40lb. |
| Flying J / Pilot | $30-38 | Truck stops - good for forklift / construction. |
| Blue Rhino / AmeriGas | N/A | Not available. Exchange only carries 20lb. |