Propane cylinder prices range from about $20 for a small refill or exchange to more than $300 for a large new cylinder, depending on capacity, whether it includes propane, and local labor. For common grill use, a 20-pound cylinder usually costs $35-$60 new when empty, or $20-$30 for an exchange that includes a refill.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| 1-pound disposable cylinder | $5 | $7 | $10 | Small camping cylinder, usually sold filled |
| 20-pound cylinder, empty | $35 | $45 | $60 | Common grill size; price varies by brand and material |
| 20-pound exchange | $20 | $25 | $30 | Typically includes a filled cylinder |
| 30-pound cylinder, empty | $60 | $80 | $100 | Often used for RVs and larger appliances |
| 100-pound cylinder, empty | $150 | $220 | $300 | Delivery, setup, and regulator may cost extra |
What common propane cylinder sizes cost to buy
For a standard backyard grill, a 20-pound cylinder is usually the lowest-cost practical choice. An empty steel cylinder commonly runs $35-$60; a filled exchange is around $20-$30, while a refill of a customer-owned cylinder is often $15-$25. A 20-pound cylinder holds about 4.7 gallons when filled to the standard safe limit, so refill prices work out to roughly $3-$5 per gallon, subject to station minimums and local rates.
A 1-pound disposable cylinder typically costs $5-$10 and holds about 0.24 gallons. A 30-pound cylinder often costs $60-$100 empty and holds about 7 gallons. A 40-pound cylinder is commonly $90-$150, and a 100-pound cylinder is roughly $150-$300 empty, with about 23.6 gallons of propane at a standard fill. Prices assume ordinary steel cylinders in good condition, not specialty composite models.
Assumptions: Typical U.S. retail pricing, standard steel cylinders, and no delivery or installation charge.
How cylinder, propane, and service charges appear on a quote
The cylinder purchase and the fuel charge are separate unless the price is for an exchange or filled disposable tank. Refilling an owned cylinder is often less expensive per gallon than exchanging it, but the operator may charge a minimum fill or decline a damaged, expired, or non-refillable cylinder.
| Quote item | Typical price | What it covers | Possible extra |
|---|---|---|---|
| 20-pound cylinder | $35-$60 | New, empty standard steel tank | $5-$15 for a gauge or cover |
| Propane refill | $3-$5 per gallon | Fuel dispensed by volume | $5-$15 minimum charge at some locations |
| 20-pound exchange | $20-$30 | Filled replacement cylinder | $5-$10 deposit if no tank is returned |
| Large-cylinder delivery | $25-$100 | Local delivery of a 100-pound cylinder | More for distance, stairs, or urgent service |
| Regulator or connector | $15-$60 | Compatible connection hardware | Installation labor may be additional |
Capacity, tank material, and certification change the price
Capacity is the main price driver, but cylinder condition and construction can matter as much as size. Moving from 20 to 30 pounds adds usable fuel and typically raises the empty-tank price by $25-$50. A 40-pound model can cost $30-$90 more than a 30-pound unit, while a 100-pound cylinder has a much higher purchase cost and may require delivery or a compatible regulator.
Composite cylinders can cost substantially more than steel; a 20-pound composite model may be around $150-$250, depending on brand and features. These lighter cylinders can be easier to lift, but they are not interchangeable with every appliance connection. Check the appliance manual and connector type before buying.
Cylinder certification and condition also affect whether a refill is available. A cylinder with a damaged valve, severe rust, or an expired requalification date may be refused or require replacement. Requalification commonly costs about $10-$25 where offered, but not every retailer provides it. For fuel estimates, 20 pounds holds about 4.7 gallons and 100 pounds about 23.6 gallons at a standard fill.
Refill labor and delivery depend on where the cylinder goes
Small-cylinder refills are usually a quick retail transaction, while large-cylinder delivery adds a separate service charge. A staffed refill generally takes 5-15 minutes, with the customer paying the posted per-gallon rate or minimum. A delivery for a 100-pound cylinder may add $25-$100 within a local service area; longer rural routes, difficult access, or same-day requests can push charges higher.
When a technician must connect a cylinder to an appliance, labor may run $75-$125 per hour, often with a service minimum. A basic connection check can take 30-60 minutes, but pipe changes, leak repairs, or code-related work increase the bill.
Urban refill prices can differ from rural cylinder delivery
Retail fuel and delivery pricing varies by market, so a local quote matters more than a national average. Urban refill stations may offer more competition and can price 5%-15% below a limited-service area. In rural locations, fewer refill sites and longer delivery routes can make large-cylinder service 10%-25% more expensive than a nearby metro quote.
Seasonal demand can also affect availability and delivery charges. Before a holiday weekend or cold-weather peak, exchange cages may run low and scheduled delivery windows can lengthen. The cylinder itself may not change much in price, but urgent service can add $25-$75 compared with routine scheduling.
Exchange, refill, or larger cylinder for the lowest fuel bill
Refilling an owned 20-pound cylinder often costs less per gallon than exchanging it, while exchange offers convenience. At $4 per gallon, a full 20-pound refill is about $19 before any minimum charge; an exchange at $25 can be worthwhile when convenience, cylinder inspection, or access to refill service matters. Compare the amount of propane supplied, not just the posted exchange price.
A larger cylinder reduces refill trips but requires more upfront spending and safe storage space. For frequent grill use, a 30-pound model may be practical if the appliance supports it. For occasional camping, disposable 1-pound cylinders avoid a larger tank purchase, though their per-gallon cost is much higher. Never connect a cylinder size or adapter that the appliance manufacturer does not approve.
Ways to keep a propane cylinder purchase within budget
Confirm whether a quote is for an empty cylinder, filled tank, exchange, or refill before comparing prices. Ask about the fill amount, minimum charge, deposits, delivery fee, and whether a regulator is included. A low price for an empty cylinder is not comparable to a filled exchange.
Keep a usable cylinder rather than replacing it solely because it looks worn, but do not refill a leaking, badly rusted, or unqualified tank. For a new purchase, choose the capacity that fits the appliance and expected use; an oversized cylinder can tie up money and storage space. Buying accessories only when required can also avoid adding $5-$60 in gauges, covers, or connectors that may not fit.
Compare at least two nearby refill prices and one exchange option, especially for routine grill use. If delivery is needed, ask whether combining the cylinder drop-off with another scheduled service reduces the trip fee. Typical savings come from avoiding unnecessary delivery, accessories, and repeat exchange charges.