Wyoming Gas Tax Calculator
2026Wyoming charges 24¢ a gallon in state tax on gasoline and 24¢ on diesel in 2026, on top of the federal 18.4¢ and 24.4¢: 42.4¢ and 48.4¢ a gallon in all. Estimate your fuel costs.
By Konstantin Iakovlev · Updated October 19, 2026 · Methodology
Fuel Needed
1.0 gal
Trip Cost
$4.33
Annual Cost
$1,125.80
Fuel Cost Breakdown
| Total Distance | 30.0 miles |
| Fuel Needed | 1.00 gallons |
| One-Way Cost | $4.33 |
| Trip Cost | $4.33 |
| Weekly Cost | $21.65 |
| Monthly Cost | $93.82 |
| Annual Cost | $1,125.80 |
Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.
Wyoming Gas Tax Overview
Wyoming’s state tax on gasoline is 24¢ a gallon and 24¢ on diesel. That is the 41st-highest state gasoline tax of the 50 states and DC. No automatic adjustment.
With the federal 18.4¢, a gallon of gasoline carries 42.4¢ of per-gallon tax, so a 15-gallon fill-up includes about $6.36 of fuel tax whatever the pump price.
Wyoming Fuel Taxes (2026)
| State Gasoline Tax | 24¢/gal |
| State Diesel Tax | 24¢/gal |
| Federal Excise Tax | 18.4¢ gasoline / 24.4¢ diesel |
| Total per Gallon | 42.4¢ gasoline / 48.4¢ diesel |
| How the State Rate Is Built | Gasoline and diesel: 23¢ license tax + 1¢ additional license tax. |
Official Sources: