A cooking gas cylinder typically costs $15-$30 to refill or exchange, while a new filled 20-pound propane cylinder often runs $60-$100. The final price depends on cylinder size, local propane rates, whether the tank is new, and delivery or exchange fees.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| 20-pound propane refill | $15 | $20 | $30 | Usually about 4.5-4.7 gallons |
| 20-pound cylinder exchange | $20 | $25 | $30 | Exchange price varies by retailer |
| New empty 20-pound cylinder | $45 | $60 | $80 | Valve and brand affect price |
| New filled 20-pound cylinder | $60 | $80 | $100 | Before delivery or taxes |
Assumptions: Common U.S. propane cylinders, standard retail service, and no unusual delivery or inspection charge.
What a 20-pound cooking cylinder costs filled
A standard 20-pound cylinder is widely used for outdoor cooking and portable appliances. A refill commonly costs $15-$30; exchanging an empty cylinder for a filled one is often $20-$30. Buying a new cylinder and its first fill generally totals $60-$100, depending on construction, retailer, and local propane pricing.
“20-pound” describes the propane capacity, not the cylinder’s empty weight. A full cylinder contains about 4.5-4.7 gallons of propane, and refill stations often charge by the gallon. For an existing cylinder, refilling is usually the lowest-cost option when the tank is accepted and in serviceable condition.
How propane, cylinder, and exchange charges split
The quote can include fuel, the cylinder itself, labor or service, and fees for delivery or disposal. Refill stations generally charge for propane dispensed; exchange programs price a filled cylinder and the convenience of swapping tanks. The table shows typical costs for a 20-pound cylinder.
| Quote component | Typical price | What it covers | When charged |
|---|---|---|---|
| Propane refill | $3-$6 per gallon | Fuel, usually 4.5-4.7 gallons | At refill stations |
| Exchange service | $20-$30 per swap | Filled cylinder and tank exchange | Retail cage or store counter |
| New cylinder | $45-$80 empty | Tank, valve, and standard finish | First purchase or replacement |
| Delivery charge | $10-$40 | Local drop-off, if offered | Delivered orders |
| Regulator or hose | $15-$50 | Appliance connection parts | When parts are needed |
Compare the total at checkout, since a low per-gallon rate may not include a minimum charge or delivery.
How capacity and fill level change the price
Smaller cylinders cost less per purchase but may cost more per gallon because the retailer’s handling charge is spread across less fuel. A 30-pound cylinder typically holds about 7 gallons and may cost $25-$45 to refill. A 40-pound cylinder can hold roughly 9-10 gallons, with refills often around $35-$60. Local prices and the amount dispensed affect both ranges.
Large 100-pound cylinders are generally filled by a propane supplier rather than a retail exchange cage. A refill may run about $70-$150, depending on gallons added, travel, and service minimums. Cylinders are filled to a safe liquid level, not to their full water capacity. Ask whether the quote is for a complete fill or only the propane needed to top off the tank.
Where refill prices run higher across U.S. markets
Retail propane prices can differ by region, season, and distance from supply. As a broad budgeting estimate, urban markets may run 5%-15% above a nearby suburban refill station, while remote rural service can be 10%-25% higher when travel or limited competition affects the rate. These differences are not fixed; comparing local quotes is more reliable than assuming a national price.
Cold-weather demand can also push delivered propane rates up, especially for larger cylinders or home systems. A walk-in refill at a busy retailer may still be cheaper than a delivered fill, but availability varies. Compare the price per gallon and any minimum or trip fee for the same cylinder size.
When delivery and cylinder condition add charges
Retail exchange is usually simple, but delivery of a larger cylinder can add $10-$40 or more. Some suppliers set a minimum order or charge extra for a short-notice visit. A cylinder that is rusty, damaged, leaking, or past its qualification date may be refused or require replacement or inspection before filling.
Before arranging service, confirm the cylinder’s size, connection type, and condition. Replacement can cost $45-$80 for an empty 20-pound tank, before the first fill. Do not attempt to repair a damaged valve or use a cylinder that a supplier has rejected. Confirm acceptance before driving to a refill station to avoid paying for an unnecessary replacement trip.
What a typical cooking setup costs in its first year
A basic setup using one existing 20-pound cylinder may cost $20-$30 for an initial refill, plus $15-$50 if a compatible hose or regulator is required. A new filled cylinder with connection parts can bring the initial outlay to about $75-$150. These figures exclude the cooking appliance and assume no delivery or installation work.
For a household using propane frequently, annual fuel use depends on burner output and cooking hours. A cylinder holding roughly 4.5-4.7 gallons can last a few months or much longer; there is no single annual cost that fits every kitchen. Estimate usage from the appliance’s rated fuel consumption and expected hours, then multiply by the local refill rate.
Is exchanging a cylinder cheaper than refilling it?
Refilling is often cheaper when a station charges around $3-$6 per gallon and fills the cylinder close to capacity. An exchange at $20-$30 can be competitive when the local refill price is high, the tank is nearly empty, or the time saved matters. Exchange cylinders may not be filled to the same capacity as a full refill, so compare usable propane, not just the posted price.
Exchange can also be practical when a cylinder is not accepted for refill, although the program may require a tank in exchange. Check whether the price includes taxes and whether the retailer accepts the cylinder’s brand or size. For a valid, empty 20-pound tank, compare the total price per gallon before choosing.
How to lower the cost of a cooking cylinder
Keep a serviceable cylinder and refill it before it is completely empty if local stations charge only for the amount dispensed. Compare at least two nearby refill locations, asking about per-gallon rates, minimum charges, and card or service fees. Buying fuel during a routine errand can also avoid a separate delivery charge.
Choose the cylinder size that fits the appliance and usage rather than buying a larger tank that is difficult to transport or store. Avoid replacing a cylinder solely because of cosmetic wear; have a qualified supplier assess it. The biggest controllable savings usually come from avoiding unnecessary exchanges, delivery trips, and replacement purchases.