How Much Does it Cost to Fill a Propane Tank?

Written by: Staff

There are two ways to get more propane.  One way is to refill the tank and the other way is to exchange it for a new one.  While there are perks to both, many people opt to refill a propane tank to help save on costs.  The average cost to refill a propane tank will depend on the size of the tank and the retailer you use.

Blue Rhino Propane Gas Refill by JeepersMedia, on Flickr
Blue Rhino Propane Gas Refill” (CC BY 2.0) by JeepersMedia

How much does it cost to fill a propane tank?

On average, refilling a 10-pound tank is going to cost anywhere from $9 to $22 per tank.  A 20-pound tank can cost upwards of $15 to $30 per tank to refill.  We researched popular retailers in our area and listed the average refill price in our table below.

A 100-pound tank can cost upwards of $65 to as much as $80.  Something even larger, such as a 500-gallon propane tank, will depend on the market conditions.  Most of the time, this rate will be in the $2.50 per gallon range, plus the delivery fee.

For example, Blue Rhino and Amerigas, a brand you commonly see at most big-box retailers, generally charge around $22, plus tax at their stations, while a name-brand retailer such as Tractor Supply Plus charges around $17 plus tax to fill up a tank.

RetailerAverage Propane Tank Refill/Exchange (20 pound for grill, etc)
Circle K Gas Station$21
Gas Station (Shell, Mobil)$25
Home Depot$20
Menards$2~ per gallon
Sam's Club$14
Tractor Supply Plus$2.29 per gallon
True Value$21

NOTE: These prices can be different depending on your geographical location.

Refilling a propane tank overview

Most retailers will have a cage filled with new tanks located in the front of the store.  Some may have a self-serve kiosk, while others require you get an associate to help you exchange or purchase a new tank.  Some retailers such as Tractor Supply Plus allow you to keep your tank as they will fill your tank on site and only charge you for the amount of propane you purchased.

Some retailers can often offer a 30-day guarantee.  If any problems persist during this time, you will be able to bring back your propane tank and either get a new one or get your money back.

Tips to know:

NEVER attempt to refill a propane tank on your own.  While there are tutorials on the internet, the risk is not worth saving $15.  You could potentially cause a lot of harm, sometimes even death if you were to do something wrong.

If you were to exchange a propane tank, keep in mind that most of the time, you won’t get 20 pounds of propane in a 20-pound tank.  Even according to Blue Rhino’s official website, they only contain 15 pounds, which equates to 3.6 gallons of fuel.  According to Home Depot, they claim their propane tanks are filled to an 80 percent capacity.

How can I save money?

A tank exchange will always be the cheapest option and most of your gas stations and retailers will have tank exchange options.  However, if you can, try to find a retailer that refills your tank on the spot, offering you only the amount of propane you truly need.  Refilling, according to, will give you a full capacity, unlike an exchange service that only gives you 15 pounds.

To make the most out of your propane tank, consider a propane tank gauge to determine how much propane is left in your tank.  Plus, you can bring this gauge to the store to make sure you’re getting a full tank.

If you plan on going to a big box retailer, such as Lowe’s or Home Depot, consider looking for a coupon ahead of time to see if you can save a few extra dollars.  Also, Blue Rhino, the brand we mentioned earlier, often has coupons available on its official website.

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Average Reported Cost: $27.25

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Less Expensive $1 $1.5K $3K $5K $6.5K More Expensive $8k

How much did you spend?

Was it worth it?  

  1. Camping world (woodstock,  Georgia) paid $3 and said:

    per gallon

    Was it worth it? Yes

  2. DAVID LAY (PARAGON,  Indiana) paid $100 and said:


    Was it worth it? Yes

  3. bj's (Virginia Beach,  Virginia) paid $12.49 and said:

    Bought 4.7 gallons from BJ’S whole sale club for $12.49

    Was it worth it? Yes

  4. Pemex (Pacoima,  California) paid $15 and said:

    They filled it my gauge was full cost 15

    Was it worth it? Yes

  5. Georgie P. (San Jose,  California) paid $15 and said:

    Lowe’s $19.97 and they give a 10% Military discount. Home Depot was $22.97 and a 10% discount. Costco in the SF Bay Area doesn’t sell it.

    Was it worth it? Yes

  6. Richard Weaver (Monticello,  Indiana) paid $18 and said:

    This is to fill a 20# tank. If you exchange tanks they are only filled 80 – 85% not the full 20#.

    Was it worth it? Yes

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