A standard propane tank exchange usually costs between $17 and $25 for a typical 20 lb grill cylinder. The exact price depends on the retailer, regional propane prices, and the exchange vendor supplying the tank.
Many retailers partner with propane exchange providers such as Blue Rhino or AmeriGas. Instead of refilling your tank, you swap your empty cylinder for a prefilled one that has already been inspected and certified.
If you are still looking for places that offer this service, see our guide to propane tank exchange near you.
Average Propane Tank Exchange Cost
Most propane tank exchanges fall within the same general price range, but some retailers are slightly cheaper than others.
Typical propane exchange prices
| Retailer | Typical Exchange Cost |
|---|---|
| Walmart | $17 – $24 |
| Dollar General | $18 – $25 |
| Home Depot | $19 – $25 |
| Lowe’s | $19 – $25 |
| Gas stations | $20 – $28 |
Prices may increase slightly during peak grilling season when propane demand is higher. If your goal is to save money, see our guide to cheap propane tank exchange near you.
Exchange vs Refilling a Propane Tank
Propane tank exchanges are convenient, but refilling a tank is often cheaper per pound of fuel. Exchange programs typically fill tanks to about 15 pounds rather than the full 20-pound capacity.
However, many people still prefer exchange services because they are quick and do not require waiting for a refill station.
- Exchange: faster and convenient
- Refill: usually cheaper per pound
If you are comparing nearby stores rather than refill stations, our guide to where to exchange propane tanks near you can help.
Where Can You Exchange Propane Tanks?
Propane exchange programs are widely available across the United States. Many major retailers offer outdoor exchange cages that store prefilled tanks.
- Grocery stores
- Hardware stores
- Gas stations
- Big box retailers
- Convenience stores
Store-specific pricing can vary. For example, many Dollar General locations offer propane exchange services. You can see our full guide on Dollar General propane tank exchange cost for store-specific details.
You can also compare options with our guides to Walmart propane tank exchange cost and Home Depot propane tank exchange cost.
Why Propane Exchange Prices Vary
Propane exchange prices can vary depending on several factors.
- Regional propane supply and fuel costs
- Retailer pricing policies
- Vendor contracts with propane suppliers
- Seasonal demand for grilling and heating
Because prices fluctuate, comparing nearby retailers is often the best way to find a cheaper exchange.
How Long Does a 20 lb Propane Tank Last?
A standard 20 lb propane tank typically lasts about 18 to 20 hours on a typical backyard gas grill. Actual runtime depends on the grill size, temperature settings, and cooking time.
If you are not sure whether your tank is empty, see our guide on how to tell if a propane tank is empty.
If your tank is older, you may also want to check whether it is still valid. See our guide on do propane tanks expire.
Conclusion
Most propane tank exchanges cost between $17 and $25 depending on the retailer and location. While refilling a tank is often slightly cheaper, propane exchange programs remain popular because they are quick, convenient, and widely available. If you are comparing prices, stores, or locations, this page and our related propane guides can help you find the best option nearby.