Propane cost for a grill usually runs $15-$30 to refill or exchange a standard 20-pound cylinder, with local refill rates often around $3-$5 per gallon. The final price depends on whether the tank is refilled or exchanged, how much propane it holds, and local fees or delivery charges.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| 20-pound tank refill | $15 | $20 | $25 | Usually billed by gallon; tank commonly holds about 4.7 gallons |
| 20-pound tank exchange | $20 | $25 | $30 | Convenient swap; replacement tank may contain about 15 pounds |
| Propane per gallon | $3 | $4 | $5 | Typical retail refill range, varying by location and provider |
| Home delivery | $30 | $45 | $70 | May include delivery minimums or service fees |
What a standard grill tank refill usually costs
A refill for a common 20-pound grill cylinder generally costs $15-$25 when a station charges by the gallon. The cylinder typically holds about 4.7 gallons when filled to its safe capacity, though a partly used tank costs less to refill. Rates around $3-$5 per gallon are common, but rural access, local supply, and station pricing can change the total.
Exchange programs often charge $20-$30 for a cylinder swap. Many exchange tanks contain 15 pounds of propane rather than the full 20-pound capacity allowed in a properly filled cylinder. Refilling is often the lower price per pound when the tank is in good condition and the station bills by actual gallons.
Assumptions: U.S. retail cylinder service, standard 20-pound grill tank, no delivery or tank purchase included.
Refill versus exchange for a 20-pound cylinder
Refill and exchange prices are not directly comparable unless the amount of propane is considered. A full 20-pound cylinder contains about 4.7 gallons, while a typical exchange may provide 15 pounds, or roughly 3.5 gallons. At $25 per exchange, the effective propane price is about $7.15 per gallon before accounting for the tank swap.
| Service | Propane amount | Typical total | Approximate price per gallon | Useful when |
|---|---|---|---|---|
| Refill | Up to 20 lb, about 4.7 gal | $15-$25 | $3-$5 | Station is nearby and tank is refillable |
| Exchange | Often 15 lb, about 3.5 gal | $20-$30 | About $5.70-$8.60 | Speed and convenience matter more than lowest unit price |
| New cylinder plus propane | Usually 20 lb, about 4.7 gal | $45-$80 | Varies with tank purchase | No usable cylinder is available |
Compare the tank’s stated propane weight, not just the exchange price or “full tank” label. Exchange may still be practical when refill stations are far away or a cylinder is damaged, expired, or not accepted by a refill operator.
How gallon rates and tank condition change the bill
Three details have a strong effect on the final quote: the local per-gallon rate, the amount needed to fill the cylinder, and whether the tank passes inspection. A tank with 1 gallon remaining may need only about 3.7 gallons, while an empty one can take close to 4.7 gallons. At $4 per gallon, that is roughly $15-$19 before any service charge.
Some stations impose a minimum charge, so a small top-off may not be billed precisely by gallons. A corroded, dented, leaking, or out-of-date cylinder may be refused. Replacing a standard cylinder can add about $45-$80 for the tank and initial propane, depending on brand and retailer. Tank condition can turn an inexpensive refill into a replacement purchase.
Why grill size and burner use affect propane spending
A standard grill does not use a fixed amount of propane per cooking session. Many household grills consume roughly 0.5-1.5 pounds per hour, depending on burner output, number of burners running, lid use, and wind. A 20-pound cylinder may provide around 13-40 hours of operation across that broad range; high heat on several burners shortens runtime.
Grills rated around 30,000-60,000 BTU per hour can use approximately 1.3-2.6 pounds per hour at maximum output, because one pound of propane supplies about 21,600 BTU. Actual consumption is often lower when burners are turned down. Frequent high-heat grilling can use a cylinder two or more times as quickly as occasional cooking over one burner.
Regional refill rates from cities to rural areas
Prices vary across the country, and nearby providers can differ as well. As a budgeting estimate, urban refill rates may run near the national retail range of $3-$5 per gallon, while rural locations with fewer refill stations can be about 10%-25% higher. High-cost metropolitan areas may also charge 10%-20% above a regional norm because of land, labor, and operating expenses.
These are planning ranges, not fixed regional tariffs. Exchange pricing tends to be posted as a flat amount, so the customer may see less obvious variation in the per-gallon equivalent. Calling two local refill stations and one exchange retailer can show whether a short drive saves enough to justify the trip.
Delivery, tank purchase, and other charges to check
Home delivery is usually less economical for a single grill cylinder than filling it at a local station. A delivery order may cost $30-$70 or more after minimum quantities, delivery fees, and the propane charge are included. Some providers deliver only when an order meets a minimum, or charge extra for a special trip.
Buying a replacement cylinder typically adds $30-$60 for the tank itself, with the initial fill adding roughly $15-$25. A new cylinder may include a deposit or exchange credit, depending on the retailer. Ask whether a quote includes the propane, tank, delivery, and any minimum charge before comparing totals.
Three grill-use budgets for a season
For occasional cooking, a household using one tank over a season may spend about $15-$25 on a refill. A regular weekend griller using three tanks might budget $45-$75 for refills, or $60-$90 for exchanges. A frequent user going through six tanks could pay roughly $90-$150 for refills, excluding travel and any new cylinder.
These examples assume each refill is near full and use the ranges above. A tank exchanged with only 15 pounds of propane may run out sooner than a full refill, so a high-use household may need more swaps. Estimate seasonal spending by counting tanks used, then multiply by the local refill or exchange price.
Ways to lower the cost without losing cooking time
Refilling a sound cylinder generally reduces the price per pound compared with swapping it, especially when a station is close. Keeping the grill covered, checking burner flames, and cooking with the lid closed when appropriate can reduce wasted heat and propane. Turning off unused burners and avoiding long preheating also helps limit consumption.
Compare the cost of an exchange with the actual refill amount, including any station minimum. Combine a refill trip with other errands to reduce travel expense, and avoid buying a new cylinder if an existing tank remains safe and accepted. The most useful savings usually come from paying for the propane actually needed and avoiding unnecessary tank replacement or delivery fees.