Buying a 20 lb propane tank refill typically costs a modest amount, with price driven by propane per gallon, fill level, and service fees. The exact price range varies by region, provider, and whether you’re paying for delivery or swapping a tank. This article presents practical cost ranges and factors to help you budget.
Assumptions: Midwest/ suburban markets, standard 20 lb cylinders, residential refill, taxes not included.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Propane price per gallon | $2.50 | $3.00 | $3.50 | 4.7 gallons per 20 lb cylinder |
| Tank fill cost (propane only) | $12.50 | $14.10 | $16.45 | Assumes 4.7 gal at listed price |
| Delivery or service fee | $0 | $6.00 | $20.00 | Includes re-fill visit or exchange charge |
| Tax | $0 | $1.50 | $3.50 | Depends on state and local tax |
| Estimated total price | $14.50 | $21.60 | $40.45 | Typical range for a refill or exchange |
Propane Price Per Gallon Driving Tank Refill Cost
The core price driver is propane per gallon. A 20 lb cylinder holds about 4.7 gallons when full, so the fill cost alone generally ranges from $12.50 to $16.50 at market prices of $2.50–$3.50 per gallon. Customers should expect fluctuations with seasonal demand and regional supply.
Assumptions: single-family home refill, standard 20 lb cylinder, no valve or leak issues, tax excluded.
| Scenario | Gas Price / Gal | Filled Gallons | Propane Cost | Notes |
|---|---|---|---|---|
| Low-cost period | $2.50 | 4.7 | $11.75 | Promotions or lower regional pricing |
| Average market | $3.00 | 4.7 | $14.10 | Typical regional pricing |
| High-demand period | $3.50 | 4.7 | $16.45 | Peak season or remote delivery |
Average 20 Lb Tank Refill Total Cost And What Affects It
Overall cost combines the propane fill with any service charges. In most U.S. markets, expect a total refill cost between roughly $14 and $25 when delivery is included, with $25–$40 possible in certain regions or for after-hours service. Higher totals usually come from delivery fees and tax in addition to per-gallon pricing.
Assumptions: standard refill visit, no leak repairs, rural delivery surcharge not in effect unless stated.
Delivery Or Service Fee And Its Impact On The Bill
Delivery or service fees can significantly impact the final price, especially if you’re not exchanging an empty tank on-site. Typical fees range from $0 to $20, with some companies bundling the service into the per-gallon rate. Always check whether a refill includes the service fee or if it’s charged separately.
Assumptions: residential delivery within 15 miles, standard weather conditions.
What About Taxes, Fees, And Local Variations In Price
Tax and local surcharges can add a few dollars to the bill. Property taxes are not applied to propane itself in most states, but regional fees may exist. A reasonable expectation is a total tax addition of $0–$3.50 depending on location. Regional price differences often outweigh small per-gallon fluctuations.
Assumptions: no promotional tax credits or rebates applied.
Regional Price Differences Across The U.S. For 20 Lb Refills
Prices vary by region due to demand, transportation costs, and competition. In some markets, you’ll see a lower per-gallon rate but a higher delivery fee, offsetting savings. Midwest and Southern markets commonly report lower overall costs than coastal hubs. Compare local quotes to see the best regional value.
Assumptions: standard 20 lb cylinder, residential refill, delivery within 20 miles.
| Region | Low Total | Average Total | High Total | Notes |
|---|---|---|---|---|
| Midwest | $14 | $21 | $35 | Lower per-gallon but modest fees |
| South | $14 | $22 | $38 | Moderate delivery fees |
| Northeast | $16 | $24 | $45 | Higher regional service charges |
| West | $15 | $23 | $40 | Variable fuel costs |
Factors That Raise Or Lower The Refill Quote For A 20 Lb Tank
Key variables include fill level accuracy (some refills top-off to 80–90% to avoid overfill), cylinder condition, and whether a new valve inspection is required. A smaller but meaningful driver is the number of gallons actually filled, because some providers intentionally fill to a safe level under 4.7 gallons. The strongest cost levers are price per gallon and delivery fee.
Assumptions: standard cylinder in good condition, no safety issue delays.
Practical Ways To Reduce 20 Lb Tank Refill Costs
Strategies to trim costs include planning refills during off-peak times, comparing quotes from multiple vendors, and opting for a swap instead of a refill when price per full cylinder is lower. Bundling delivery with other home services can also lower per-transaction fees. Carefully compare quotes and avoid unnecessary add-ons.
Assumptions: two refills per year, no emergency orders.
Convenient Alternatives And How They Compare In Cost
Alternatives include propane tank exchanges, bulk propane purchases, or switching to a larger tank with a lower per-gallon rate. Exchanges can be convenient but sometimes carry higher per-gallon costs. For a fixed 4.7-gallon fill, the swap price may be comparable to a refill when delivery is factored in. Evaluate total costs over the service life rather than unit price alone.
Assumptions: swap option available locally, standard 20 lb cylinder compatibility.
Mini Quote Snapshot Examples
Example A: Refill, 4.7 gal at $3.00/gal, $0 delivery, tax $1.20 -> Total $15.60.
Example B: Refill with $8 delivery, 4.7 gal at $2.75/gal, tax $2.10 -> Total $23.15.
Example C: Exchange, set price $34.00 including delivery, 4.7 gal equivalent -> Total $34.00.
Assumptions: regional delivery fees vary; tax posted at point of sale.
Note: Prices shown are estimates and will vary by location, supplier, and season. Always request a written quote that shows propane price per gallon, fill volume, delivery fee, and tax so you can compare apples-to-apples.