The cost to fill a propane tank varies by tank size, location, and current propane prices. Typical fills for common 20-lb (5-gallon-equivalent) tanks run in the single digits to mid-teens in dollars per fill; complete refills can climb higher if service fees or delivery are included. The main cost drivers are the propane price per gallon, the tank size, and any delivery or service charges. Price estimates should consider both the amount of propane and any associated service fees.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| Propane Tank Fill (20-lb) | $7 | $12 | $25 | Assumes 4.2 gallons; regional price variance applies |
Overview Of Costs
The typical propane fill for a standard 20-lb cylinder costs around $12 on average, with lower and higher extremes driven by regional propane prices and service fees. In some markets, you may see as little as about $7 for a basic fill, while full-service deliveries or refills with tank requalification can push costs toward the mid-$20s. Assumptions: region, specs, labor hours. Understanding the total cost requires combining the per-gallon price with tank size and any added charges.
Cost Breakdown
The cost to fill a propane tank can be broken down into a few key components. The table below shows typical columns for a single-fill scenario and common add-ons that affect the final bill.
| Column | What it covers | Typical range | Notes |
|---|---|---|---|
| Propane | Price per gallon x gallons in tank | $2.50-$4.00 per gal | Most common driver of total cost |
| Gas Volume | Tank capacity in gallons (equivalent) | 4.0-4.5 gal for 20-lb tank | Standard 20-lb cylinder holds ~4.2 gal |
| Delivery / Service Fee | Delivery to location or premium service | $0-$15 | Some vendors waive fee with refill order |
| Cylinder Refill Fee | Inspection or safety refill process | $0-$5 | Often included in service fee |
| Taxes | Sales tax or local charges | $0-$2 | Varies by state and locality |
| Surge Pricing / Seasonal | Prices during peak demand | $0-$5 | Higher in winter or major outage periods |
What Drives Price
Price components are straightforward but vary by market. The gas price per gallon, its supply chain, and regional taxes shape the bottom line. Regional differences show up as ±10% to ±25% from national averages, influenced by weather, storage, and distribution costs. Tank type and fill method also matter: full-service delivery or “tank exchange” typically costs more than a customer-placed refill at a station. Assumptions: region, specs, labor hours.
Factors That Affect Price
Several factors determine the final fill cost. The most influential is propane price per gallon, which shifts with crude markets and seasonal demand. Tank size matters: a 20-lb cylinder holds about 4.2 gallons, while larger tanks naturally require more gas. Delivery or appointment fees can add to the bill if service is required. Other drivers include local taxes, the speed of service, and whether the vendor runs promotions or offers bundled services.
Ways To Save
Smart shoppers can minimize costs by comparing local providers, choosing refill options over exchanges, and timing fills to off-peak windows. Some vendors offer volume discounts or loyalty programs that reduce per-fill cost. It is also helpful to plan fills ahead of peak demand periods to avoid surge pricing. Compare total costs, including delivery fees and taxes, before committing.
Regional Price Differences
Prices vary across regions due to logistics and market competition. For example, urban centers may see higher delivery fees, while rural areas might have limited supplier options, affecting price. Three representative zones show a typical delta range of ±15% to ±25% from a national average. Assumptions: regional availability, competition, delivery policy.
Labor & Installation Time
Propane fill itself is quick, but some scenarios include safety checks or cylinder requalification. If a delivery is required, labor costs may be bundled into the service fee. Typical on-site service for a refill may take 15–30 minutes, with labor costs embedded in delivery pricing. Factor this into total when comparing self-refill vs. full-service delivery.
Additional & Hidden Costs
Occasional extra charges include hazardous material surcharges, cylinder inspection fees, or mileage-based delivery charges. Some providers enforce a minimum order or add a small environmental fee. Assumptions: service type, local regulations. Always verify the final total before accepting service.
Real-World Pricing Examples
Three scenario cards illustrate typical affordability ranges. These examples use common 20-lb cylinders and standard delivery or self-fill options. The figures assume a single-fill event with no additional repairs or inspections beyond standard safety checks.
-
Basic Fill — Tank: 20-lb; Propane: 4.2 gal; Delivery: none; Total: $10-$14.
Assumptions: regional price on the lower end, no service fee. -
Mid-Range Fill — Tank: 20-lb; Propane: 4.2 gal; Delivery included; Total: $14-$20.
Assumptions: standard market price, usual delivery fee. -
Premium Fill — Tank: 20-lb; Propane: 4.2 gal; Delivery with rush service; Total: $20-$28.
Assumptions: peak season or remote location, higher per-gallon price.
Performance & Ownership Costs
Beyond the single-fill price, ongoing costs include ongoing gas consumption, potential cylinder exchange costs, and periodic safety requalification if applicable. A basic budget approach accounts for repeat fills across the heating or grilling season, plus any occasional maintenance or inspection charges. Estimate annual fill events to project the lifetime cost of ownership. Assumptions: seasonal usage, gas price stability.