Filling a large propane tank typically costs about $800-$3,600, depending mainly on tank size, gallons needed, and the local delivered price per gallon. A 500-gallon tank holds about 400 gallons at its safe 80% fill limit; delivery charges, minimum orders, and region can also change the bill.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| 500-gallon tank refill | $800 | $1,200 | $1,800 | About 400 gallons from near empty |
| 1,000-gallon tank refill | $1,600 | $2,400 | $3,600 | About 800 gallons from near empty |
| Propane delivered | $2.00/gal | $3.00/gal | $4.50/gal | Regional and seasonal variation |
| Small delivery or service fee | $0 | $50 | $150 | May be waived for larger orders |
What a 500- or 1,000-gallon refill usually costs
Most of the bill is the propane itself, calculated by gallons delivered. At roughly $2-$4.50 per gallon, filling a 500-gallon tank from nearly empty to 80% capacity costs about $800-$1,800 before possible fees. The same fill level on a 1,000-gallon tank takes about 800 gallons and costs around $1,600-$3,600.
These estimates assume a standard residential tank, a routine truck delivery, and no tank repairs or unusual access charges. A tank that is only half empty needs fewer gallons, so its refill bill can be substantially lower. Assumptions: U.S. residential delivery, safe 80% maximum fill, ordinary truck access, no special service.
How gallons, delivery, and labor appear on a propane quote
Propane suppliers generally charge for the gallons delivered, then add any applicable delivery, minimum-order, or service fees. Tank installation labor is not normally part of a routine refill. A leak test, regulator work, or reconnecting an inactive tank can add separate charges.
| Quote item | Typical price | How it is charged | What changes it |
|---|---|---|---|
| Propane | $2.00-$4.50/gal | Gallons delivered | Region, contract, season, order size |
| Standard delivery | $0-$100 | Per trip or included | Supplier policy and route |
| Minimum-order charge | $25-$100 | Per small delivery | Order below supplier threshold |
| Inspection or leak test | $75-$200 | Per service visit | Tank status and work required |
| Labor for service work | $75-$150/hour | Time on site | Access, diagnosis, parts |
Ask whether the per-gallon quote includes delivery and whether a minimum order applies. This helps compare suppliers on the delivered total rather than on an advertised fuel rate alone.
Tank capacity and fill level change the total bill
A tank’s labeled capacity is not its usable fill volume: propane tanks are typically filled to no more than 80% to leave room for expansion. A 500-gallon tank therefore takes about 400 gallons when nearly empty, while a 1,000-gallon tank takes about 800 gallons.
Starting level matters just as much as tank size. If a 500-gallon tank is at 40% of its safe capacity, it may need roughly 160 gallons to return to 80%. At $3 per gallon, that fuel is about $480, before fees. Estimate the gallons needed from the gauge reading, not the tank’s nameplate capacity.
Orders below 100-150 gallons may trigger a minimum-delivery fee or a higher effective rate, depending on the supplier. An inaccessible tank, long hose run, steep driveway, or locked gate can also require special scheduling or incur extra service charges.
Why regional propane rates differ by more than a dollar
Delivered prices vary with local competition, distance from terminals, transportation costs, and heating demand. Rural customers far from a supplier’s route may pay about 5%-20% more than nearby customers with multiple providers; high-demand areas can also see rates above the national middle range.
In colder northern markets, winter demand can push delivered rates roughly 10%-30% above off-season quotes. Southern markets often have less winter heating pressure, though local supply and delivery distance still matter. These are broad comparisons, not guaranteed regional premiums. Compare current delivered quotes from suppliers serving the same address.
Three refill examples for common large-tank situations
| Situation | Estimated fuel | Fuel subtotal | Likely total |
|---|---|---|---|
| 500-gallon tank, 20% to 80%, $2.50/gal | 300 gal | $750 | $750-$850 |
| 500-gallon tank, nearly empty, $3.10/gal | 400 gal | $1,240 | $1,240-$1,340 |
| 1,000-gallon tank, nearly empty, $3.75/gal | 800 gal | $3,000 | $3,000-$3,150 |
Totals allow for a routine trip fee where applicable, but exclude inspections, repairs, and taxes if charged. A quote for fewer gallons can still be expensive if a minimum fee is added. Example rates are illustrative; local supplier pricing may differ.
Delivery timing can affect the price per gallon
Ordering before the tank is close to empty gives more time to compare rates and schedule a standard route. Emergency delivery, weekend service, or a special trip may add about $50-$200, and a small urgent order can cost more per gallon than a larger scheduled refill.
Automatic delivery can reduce the risk of running out, but the contract may set a fixed, market-linked, or capped price. Check the pricing method, annual fee, minimum gallons, and early-termination terms before enrolling. Ask for the delivered price and every trip charge in writing.
Tank ownership and supplier contracts affect refill pricing
Customers who own their tank may be able to request quotes from several propane companies, subject to local rules and supplier policies. A leased tank may require purchases from the leasing supplier, limiting price comparisons. Switching providers can involve a tank inspection, disconnection, or contract fee.
For a new or inactive tank, the first delivery may require a pressure test or leak check, commonly adding $75-$200 when service is needed. A gauge, regulator, or piping repair is separate from fuel. Confirm whether the tank is customer-owned or leased before comparing offers.
Ways to lower a large propane tank refill bill
Request at least three delivered-price quotes for the same delivery window and estimated gallons. Compare per-gallon rates, minimum orders, tank fees, and payment or contract terms together. If the supplier offers a lower price for a larger scheduled drop, check that the tank has enough safe capacity to receive it.
Refill before an emergency, group routine service with other planned work when possible, and avoid paying for inspections that are not required or warranted by the tank’s condition. Do not exceed the tank’s 80% fill limit or attempt a transfer without qualified service. The most controllable savings usually come from timing, order size, and transparent quote comparison.