Updated April 5, 2026 — Prices updated regularly from EIA data
$3.18
Average Regular Unleaded — Denver, Colorado
Current Gas Prices in Denver
The going rate for a gallon of regular unleaded in Denver, Colorado is $$3.18 today. Local price variation gives shoppers a meaningful advantage when they take a few minutes to compare nearby stations.
Fuel Type
Price / Gallon
Grade
Trend
Regular Unleaded
$3.18
87 octane
▲ Rising
Mid-Grade
$3.68
89 octane
▲ Rising
Premium
$3.97
91-93 octane
▲ Rising
Diesel
$4.30
N/A
▲ Rising
Price Comparison
Denver Average
$3.18
Regular Unleaded
Colorado State Average
$2.93
$0.25 above the Colorado average
National Average
$3.99
$0.81 below the national average
About Gas Prices in Denver
The best time to buy gas in Denver follows the national pattern: Tuesday and Wednesday consistently show the lowest weekly prices, while Thursday through Sunday prices climb with weekend demand. Monthly, prices often dip mid-month. Following these patterns in Denver can save 5-15 cents per gallon.
Gas Prices by Brand in This City
Estimated prices based on brand modifiers. Sorted cheapest to most expensive.
Costco and Sam's Club fuel stations serve many major metropolitan areas and offer the lowest prices for members — typically 15-25 cents below local market. Membership costs $65-130/year but typically pays for itself in fuel savings alone for regular drivers.
Gas price spikes in Denver are typically triggered by regional supply disruptions, pipeline outages, refinery maintenance, seasonal blend transitions, and global crude oil price increases. Holiday demand surges around Memorial Day, July 4th, and Labor Day also push prices up temporarily.
Premium gas in Denver is worth the extra cost only if your vehicle requires it. If your owner's manual says Required, always use premium. If it says Recommended, you may use regular with minimal performance loss. Never use regular in a vehicle that requires premium.
Costco offers the cheapest gas wherever it operates in the Denver area. Among street stations, Circle K, Speedway, and Wawa (in applicable markets) consistently offer below-average prices. Shell, Chevron, and BP typically price above the local average.
At today's Denver average of $$3.18 per gallon, a standard 13-gallon sedan tank costs ${fillCost} to fill. A larger 20-gallon SUV or truck tank runs ${truckFill}. Choosing the cheapest local station can save $3-5 on each fill-up.