A new 20-pound propane tank at Lowe’s typically costs about $45-$70, while exchanging an empty cylinder commonly runs $20-$25, depending on brand and local availability. Tank size, whether the cylinder is new or exchanged, and whether it includes fuel are the main price drivers.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| New 20-lb grill tank | $45 | $58 | $70 | Usually an empty cylinder; price varies by brand and store |
| 20-lb propane exchange | $20 | $23 | $25 | Trade an eligible empty tank for a filled one |
| 20-lb tank refill | $15 | $20 | $30 | Often offered by propane dealers, not every Lowe’s |
| 30-lb portable tank | $70 | $90 | $115 | Retail supply and local inventory vary |
| 100-lb propane cylinder | $180 | $240 | $320 | May require a propane supplier rather than a retail store |
What a Lowe’s 20-pound propane tank usually costs
A standard grill cylinder is the most common tank purchase at Lowe’s. A new, empty 20-pound tank generally costs $45-$70 before tax. Some listings or stores may offer a tank bundled with fuel, a gauge, or a connection accessory, so comparing the included contents matters as much as comparing the shelf price.
Budget about $55-$60 for a basic new cylinder, and do not assume it arrives filled. A 20-pound tank holds roughly 4.7 gallons of propane when filled to the safe service level. If the tank is empty, the first-use total includes a separate fill or exchange charge, which can bring the initial outlay to around $65-$100.
Prices and availability can differ between Lowe’s locations and online listings. Some products are sold for pickup or delivery only in selected areas, and local propane exchange cages may be operated by a third-party supplier. The listed price may not include delivery, accessories, or applicable sales tax.
Assumptions: standard steel grill cylinder, ordinary retail access, and no delivery fee or optional accessories.
How tank, fuel, labor, and delivery charges add up
The tank price is only one part of the total. A new cylinder may need a first fill, while an exchange price covers a filled replacement but requires a qualifying empty tank. A refill typically charges for propane by the gallon, with a minimum charge or service fee possible at some locations.
| Quote item | Typical price | What the charge covers | Common price condition |
|---|---|---|---|
| New 20-lb tank | $45-$70 per tank | Empty cylinder, usually with valve | Brand, retailer, and promotions |
| Exchange cylinder | $20-$25 per exchange | Filled tank in return for an eligible empty tank | Tank condition and exchange provider |
| Refill propane | $3-$6 per gallon | Fuel added to a customer-owned tank | Local rates, season, and minimum charge |
| Tank gauge or hose | $10-$35 per accessory | Fuel-level indication or appliance connection | Type, length, and compatibility |
| Delivery for larger tank | $25-$100 or more | Transport to the property | Distance, supplier, and order size |
Refill prices are local examples rather than a Lowe’s-wide rate. Not all Lowe’s stores fill tanks, and exchanging a cylinder is not the same as paying to refill the customer’s own cylinder. A tank with an expired qualification date, damaged valve, or unacceptable condition may be rejected by an exchange operator.
Check whether a quote includes fuel, the cylinder, and delivery before comparing totals. For labor-intensive installation of a larger stationary tank, the supplier may also charge for a regulator, gas line, site work, inspection, or setup; those expenses do not normally apply to a portable grill cylinder.
Why tank size and certification change the price
Capacity is the clearest price difference. A 20-pound grill tank is a portable household cylinder; 30- and 40-pound models weigh more and may cost roughly $70-$160. A 100-pound cylinder can cost $180-$320, but stock at Lowe’s may be limited or unavailable. Larger cylinders can also involve delivery or supplier setup fees.
Look at the stamped water capacity and intended use, not just the tank’s appearance. A nominal 20-pound cylinder is designed to hold about 20 pounds of propane under normal filling limits. Different cylinder sizes may not fit the same grill compartment or mounting bracket, and a larger tank can require a compatible hose or regulator.
Certification and condition affect whether a cylinder can be filled or exchanged. Older cylinders may need requalification, and a damaged or corroded tank may be refused. Requalification cost and availability depend on the cylinder and local service provider; replacing a noncompliant tank can be more practical than paying to have an older one assessed.
Check appliance fit, valve type, and certification status before paying for a larger cylinder. For a standard grill, a tank that fits the manufacturer’s connection and mounting requirements is more useful than a cheaper cylinder that requires extra fittings.
New tank, refill, and exchange prices compared
Buying a new tank makes sense when there is no usable cylinder to exchange. The purchase is a one-time equipment cost, but the tank may be empty. Exchange is convenient when an eligible empty tank is already available and a nearby cage is open. Refilling may cost less per pound, particularly when the tank is not nearly empty, but requires a refill station.
| Option | Typical outlay | What the buyer keeps | Price trade-off |
|---|---|---|---|
| Buy new 20-lb tank | $45-$70, plus fuel | New cylinder | Higher first purchase; useful without an exchange tank |
| Exchange 20-lb tank | $20-$25 | Filled replacement cylinder | Fast and convenient; tank is generally not the original one |
| Refill existing tank | $15-$30 for a typical fill | Same cylinder, refilled | Can be economical; price depends on amount added and local rate |
A refill is usually priced by gallons, so a partly full tank costs less to top off than an empty tank. By contrast, an exchange usually has a set charge whether the returned cylinder contains a small amount of fuel or is fully empty. That difference can change which option is cheaper on a particular visit.
Exchange operators generally retain the returned tank and provide another cylinder, which may be newer or differently branded. A customer who prefers to keep a specific tank should confirm that a refill station accepts it and can service its certification status. Lowe’s exchange availability and pricing should be checked at the intended store.
How regional rates affect propane tank quotes
Retail cylinder prices often vary less than delivered propane service, but local competition, transportation, and seasonal demand still influence the bill. In many areas, a 20-pound tank price may fall within the national retail range of $45-$70. Remote markets or stores with limited inventory can run around 5%-15% higher than a well-stocked metro store.
Propane refills also differ by region and provider. A refill rate of about $3-$6 per gallon is a useful planning range for small cylinders, but a local minimum fee can raise the effective price per gallon when only a little fuel is added. Some locations price exchange more consistently than refills because the exchange service is a set transaction.
Rural customers buying 100-pound or larger tanks may face delivery charges that are uncommon for a portable grill cylinder. A remote drop can add $25-$100 or more, while a bulk supplier may require a minimum purchase or annual service arrangement. Ask whether the delivery fee is waived above a stated fuel quantity.
Compare the final local total rather than relying on a national shelf-price estimate. A store pickup price, propane exchange price, and delivered-tank quote cover different services and should not be treated as directly interchangeable.
Three realistic budgets for common tank purchases
The examples below show how the tank and fuel choices change the out-the-door budget. They use ordinary retail or local-service assumptions, before sales tax, and do not represent a guaranteed Lowe’s quote.
| Purchase scenario | Calculation | Estimated total | Assumption |
|---|---|---|---|
| First grill tank | $55 tank + $20 fill | $75 | Basic empty 20-lb cylinder filled locally |
| Empty cylinder exchange | $23 exchange | $23 | Eligible empty 20-lb tank returned |
| Large portable cylinder | $100 tank + $25 delivery + $25 fuel | $150 | Approximate 30-lb tank purchase with local delivery and fill |
For the first-grill example, a $55 tank plus a $20 fill brings the equipment and fuel total to $75. Adding a hose, regulator, or gauge can add $10-$35, although a grill may already include the required connection hardware.
For an exchange, the $23 estimate assumes the buyer brings an eligible empty tank. Buying a new tank first and then exchanging it immediately usually costs more than simply purchasing a filled cylinder, if that option is available. The retailer’s product listing should say whether a cylinder is full, empty, or supplied through an exchange program.
The larger-cylinder example is illustrative because delivery arrangements vary sharply by supplier. A 30-pound cylinder may be purchased empty, filled separately, or sold through a different propane dealer. Confirm the cylinder’s quoted condition and delivery boundary before comparing it with a retail-store price.
When refilling or exchanging saves more money
Refilling can be less expensive when the customer owns a sound, in-date tank and a nearby station charges by the gallon without a steep minimum. If a refill costs $3-$6 per gallon, a 20-pound cylinder that takes about 4-5 gallons from near-empty may cost roughly $15-$30 to fill. The actual amount depends on remaining fuel and safe filling limits.
Exchange can be the better value when convenience matters, the tank is due for replacement, or a refill site is far away. It also avoids waiting for a separate inspection or refill. However, if the empty tank is only partly empty, an exchange’s fixed fee may effectively cost more than paying for the amount needed to top it off.
For a new buyer, compare a filled-cylinder offer with the combined cost of an empty tank and first fill. A filled tank at $65-$85 may be competitive against a $50-$65 empty tank plus $15-$30 for fuel. Confirm whether the offer is a purchase, deposit, or exchange transaction, since those terms affect future costs.
Lower the total by checking compatibility and timing
Before buying, check the grill manual for cylinder capacity, connector type, and clearance. Staying with a standard 20-pound tank avoids paying for excess capacity that may not fit the grill cabinet. If the existing cylinder is safe and accepted locally, refill it rather than replacing it solely because another brand is displayed at a lower shelf price.
Compare at least two nearby options: the Lowe’s listing or store exchange price and a local refill station’s per-gallon rate. Ask about minimum charges, whether the tank must be empty, and whether the quoted amount includes fuel. For larger tanks, request an itemized price that separates the cylinder, fuel, delivery, regulator, and site work.
Buy outside peak grilling periods when inventory and exchange availability may be less pressured, but treat seasonal savings as uncertain rather than guaranteed. Avoid adding gauges, hoses, or adapters unless they are required by the appliance or provide a clear use benefit. A mismatched accessory can create compatibility or safety problems that outweigh a small purchase saving.
The most reliable savings come from buying the right capacity and comparing the complete fuel-and-equipment total. Do not use a damaged cylinder, bypass a regulator, or attempt to fill a tank beyond its rated limits to reduce cost. Follow the appliance instructions and local propane handling rules.