How much does it cost to fill a 100 pound propane tank?

The cost to fill a 100 pound propane tank depends on several factors, including the current price of propane per gallon, any applicable taxes or fees, and any minimum fill charges from the supplier. With propane prices fluctuating regularly, the total cost to fill a 100 pound tank can vary significantly. However, we’ll examine some typical costs and what impacts the price.

What is the capacity of a 100 pound propane tank?

A standard 100 pound propane tank holds about 23-24 gallons of propane when full. The exact capacity can vary slightly depending on the tank dimensions, but most 100 lb tanks will hold right around 23-24 gallons.

What is the average price per gallon for propane?

According to the U.S. Energy Information Administration, the average residential price for propane in the United States in 2022 was about $2.94 per gallon. However, propane prices fluctuate seasonally and can vary quite a bit by region. Typically, prices are higher in the winter when demand peaks.

How is propane priced and sold?

Propane is commonly sold by the gallon in the United States. Suppliers will list a price per gallon that reflects the wholesale cost of propane plus any taxes, fees, or markups. When you get a propane tank filled, you pay for the number of gallons pumped based on the current per-gallon price. Many suppliers have minimum fees or partial fill charges too.

What other costs factor into filling a propane tank?

In addition to the base cost per gallon of propane, several other costs can impact your total fill up price:

  • Taxes – Many states levy extra taxes on propane fuel sales.
  • Fees – Suppliers may charge hazmat, service, or delivery fees.
  • Minimums – Some suppliers require a minimum number of gallons or dollar amount purchased.
  • Partial fill charges – If you don’t fill the entire tank, some fees may apply.

Make sure to factor in any taxes, fees, or minimum purchase requirements when budgeting for a fill up.

What is the typical cost to fill a 100 pound propane tank?

Based on average 2022 propane prices around $2.94/gallon, the estimated cost to fill a typical 100 lb propane tank would be:

  • 23 gallons x $2.94/gallon = $67.62 for just the propane
  • Add approximate 15% for taxes and fees = $77.76 total

However, with propane prices changing frequently, the total cost can range from $60 on the low end up to $100 or more when prices spike in winter. Always check current prices in your area.

What are some ways to save money on propane tank refills?

Here are some tips that can help you save on propane tank refilling costs:

  • Compare prices between local suppliers
  • Buy in bulk if your supplier offers discounts
  • Join a prepaid or capped price program if offered
  • Fill during off-peak seasons when prices are lower
  • Ask about discounts for paying cash or auto-delivery
  • Pre-buy and lock in a price before winter
  • Improve home efficiency to use less propane

How can I estimate the cost to fill my propane tank?

You can estimate your propane fill up cost in a few easy steps:

  1. Look up the capacity of your propane tank (gallons).
  2. Find the current local retail price per gallon for propane.
  3. Multiply the tank capacity by the price per gallon.
  4. Add estimated taxes and fees, typically 15% or more.

This will give you a good ballpark estimate. Make sure to factor in any minimum fees or partial fill charges too.

How much does propane cost compared to other fuel types?

Propane tends to cost more per unit of energy compared to natural gas, fuel oil, or electricity. However, propane has some advantages that can make it more affordable overall:

  • Propane tanks are convenient for homes not connected to natural gas lines.
  • Propane furnaces and appliances can have lower upfront costs compared to electric.
  • Portable propane heaters can be economical for supplemental heating.
  • Propane costs are not affected by power outages.

For off-grid homes or heating/cooking applications, propane can be more affordable than alternatives despite the higher per-unit energy costs. It’s economical as a standalone or backup energy source.

How can I reduce my propane costs?

Some ways to cut propane costs include:

  • Setting thermostat lower in winter
  • Upgrading to a high-efficiency propane furnace
  • Adding insulation and sealing leaks
  • Using propane more efficiently in appliances
  • Switching to propane tankless water heater
  • Installing high-performance propane fireplace
  • Cooking and grilling more efficiently
  • Line-drying clothes instead of propane dryer

Every bit of efficiency improvement means you’ll use less propane and save on refilling costs. An energy audit can help identify the most impactful upgrades for your home.


Filling a standard 100 pound propane tank typically costs $60 to $100, depending on propane prices, taxes, fees, and your location. Prices fluctuate seasonally, so compare costs among local suppliers and watch for discounts to save the most money. Improving propane efficiency in your home through upgrades and conservation can also lower refill costs over time.

Tank Size Full Tank Capacity Estimated Cost to Fill (at $2.94/gallon)
100 lbs 23-24 gallons $67.62 – $70.56
120 lbs 28-30 gallons $82.32 – $88.20
200 lbs 43-47 gallons $126.42 – $138.18
250 lbs 57-60 gallons $167.58 – $176.40
500 lbs 115-120 gallons $338.10 – $353.60

This table provides estimates on the cost to fill common propane tank sizes based on average 2022 propane prices. The actual cost can vary based on tank capacity, propane price, and other fees.

Key Factors in Propane Fill Costs

The main factors that determine the cost of filling a propane tank include:

  • Local retail propane price per gallon
  • Tank size/capacity in gallons
  • Applicable taxes on propane (e.g. state fuel tax)
  • Fees charged by propane supplier
  • Any minimum fill amount requirements
  • Partial tank fill fees or discounts
  • Seasonal variations in propane prices
  • Regional differences in propane prices

Understanding these key factors allows you to better estimate the total cost to fill your propane tank in your area.

Ways to Save on Propane Refills

Strategies to save money on propane tank refills include:

  • Compare prices from at least 3 local suppliers before filling
  • Join a capped price program or buy pre-buy if offered
  • Fill tank early before winter when prices typically rise
  • Fill tank completely to avoid partial fill charges
  • Ask about discounts for paying with cash/check vs credit
  • Inquire about lower prices for scheduled automatic delivery
  • Buy in bulk if supplier offers price breaks on large fills
  • Improve home efficiency to conserve propane usage

Taking some time to research rates and ask for available discounts can lead to significant savings on annual propane costs.

Propane vs Natural Gas, Fuel Oil, Electric

Propane typically costs more per unit of heat energy compared to natural gas, fuel oil, or electricity. Some comparisons:

  • Propane: $2.94/gallon average retail price (2022)
  • Natural Gas: $9.19/thousand cubic feet average retail price (2022)
  • Fuel Oil: $5.64/gallon average retail price (2022)
  • Electricity: 14.22 cents/kWh average retail price (2022)

But propane has advantages like portability, lower infrastructure costs, and independence from the power grid that can make it more economical overall for certain homes and applications.

Improving Efficiency to Reduce Costs

Ways to use propane more efficiently in order to reduce costs include:

  • Adding insulation and sealing air leaks
  • Upgrading to a new, high-efficiency propane furnace
  • Switching to a tankless propane water heater
  • Installing a programmable thermostat
  • Cooking efficiently on propane stoves/grills
  • Line-drying clothes instead of using propane dryer
  • Keeping propane appliances maintained and tuned up

An energy audit can help pinpoint the best efficiency upgrades. More efficient propane use means filling the tank less often and saving money.

Calculating the Cost to Refill Your Propane Tank

Follow these steps to estimate your propane refill cost:

  1. Determine your tank size in gallons (should be stamped on collar)
  2. Lookup current local propane price per gallon
  3. Multiply tank capacity by price/gallon
  4. Add estimated taxes/fees (usually 15% or more)
  5. Factor in any minimum fees or partial fill charges

This provides a good estimate, but call suppliers to confirm precise current pricing. Prices can vary between companies.

Changes in Propane Prices Over Time

Propane prices have climbed significantly over the past two decades, with some volatility:

  • 2000: 79 cents/gallon average residential price
  • 2005: $1.52/gallon
  • 2010: $2.29/gallon
  • 2015: $2.41/gallon
  • 2020: $2.28/gallon
  • 2022: $2.94/gallon

Prices spiked as high as $4/gallon during some peak winter periods when demand soars. Overall propane prices have outpaced inflation, especially in recent years.

Regional Variations in Propane Prices

Propane prices can vary significantly by state and region. Some examples of average 2022 residential propane prices by state:

  • Texas: $2.64/gallon
  • Colorado: $2.68/gallon
  • Ohio: $3.17/gallon
  • Maine: $3.36/gallon
  • Alaska: $3.45/gallon

Factors like distance from supply hubs, taxes, and local demand lead to price differences between regions. Check local rates when budgeting propane costs.

Propane Price Outlook

Propane prices are expected to remain elevated heading into 2023 due to factors like:

  • High crude oil and natural gas prices
  • Increased domestic and global demand
  • High transportation, storage, and distribution costs
  • Geopolitical tensions and supply uncertainty

Weather events also significantly impact propane supply and demand. While prices may decline seasonally in warmer months, most experts foresee prices remaining high compared to historical norms.


Filling a standard 100 pound propane tank costs anywhere from $60 to over $100, depending on tank size, propane prices, and additional fees. Prices change regularly, so call suppliers to find the best current rate. Compare costs from several providers and utilize discounts to maximize savings. Improving efficiency in your propane appliances reduces consumption and can lower refill costs over time as well.

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