Updated April 5, 2026 — Prices updated regularly from EIA data
$4.22
Average regular unleaded — Hawaii
Today's Hawaii Gas Prices
Regular gas in Hawaii averages $$4.22 today, making it above ($0.23) the national average of ${natAvg}. The West state's state fuel tax of 17 cents per gallon fuel tax of {tax} cents per gallon is one of the key drivers of local pump prices.
In Hawaii, as in most US states, Monday and Tuesday tend to show the lowest weekly prices. Prices rise Thursday through Sunday as weekend demand increases. Filling up Tuesday afternoon typically captures the weekly low.
Hawaii charges 17 cents per gallon in state fuel taxes. The national average is around 30 cents per gallon. Hawaii's tax places it among the lowest-tax states nationally for fuel taxation.
Hawaii gas stations offer regular (87 octane) at $$4.22, mid-grade (89 octane) at approximately $$4.88, premium (91-93 octane) at $$5.27, and diesel at $$5.71 per gallon. Most stations also offer E85 ethanol blend where flex-fuel vehicles are common.
Many states require reformulated gasoline (RFG) or special summer blends to meet EPA air quality standards during warmer months. These blends reduce evaporative emissions but cost 5-15 cents more per gallon to produce.
Costco consistently offers the cheapest gas in any Hawaii market where it operates — typically 15-20 cents below local street prices. Circle K, Speedway, and QuikTrip (where available) also routinely undercut the market average. Premium brands like Shell, Chevron, and BP typically price above the local average.
