About the Gas Price Tracker
The Gas Price Tracker shows live U.S. regular-gasoline retail averages by state, the national average, diesel averages, plus the underlying commodity prices — RBOB gasoline futures and WTI crude — that drive retail pricing 4–6 weeks downstream. A state heat-map and ranked table surface the highest and lowest-cost states. A built-in calculator converts state prices to per-fill-up and per-month spend at your MPG and miles-driven inputs.
It is built for commuters checking whether their state is above or below the national average, road-trippers planning a multi-state route and pre-fueling in the cheaper state, fleet managers tracking weekly cost moves, journalists writing energy-market explainers, and anyone wanting to see why pump prices lag oil-price moves by weeks (the answer: refining, distribution, state taxes, and seasonal blend changes).
State and national price data is pulled live from cached AAA retail-average feeds on EvvyTools’ own server (refreshed daily); commodity prices come from EIA (Energy Information Administration) cached data. Once the dashboard loads, calculator math and state comparisons run locally in your browser — no further network calls, and no user inputs (your state selection, mileage, MPG) are transmitted off your device.
Retail averages are exactly that — averages. Local prices vary 20–50 cents/gallon between stations on the same block due to brand contracts, lease terms, real-estate cost, and competitive geography. State averages also mask wide regional spread (California’s coastal cities vs Central Valley, for example). For the actual cheapest pump near you, use GasBuddy on the ground — this dashboard is for macro tracking, planning, and seeing how state taxes and refining capacity drive structural cost differences.
Compare Two States
Pick two states and see the full side-by-side comparison.
- Annual fuel cost*
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- vs. national avg
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- National rank
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- 52-week high
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- Annual fuel cost*
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- vs. national avg
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- National rank
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- 52-week high
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*Annual fuel cost assumes 12,000 miles/year at 25 MPG (US average).
National Heat Map
Click any state to load its details. Colors scale from cheapest (green) to priciest (red).
California gas vs. national average
With WTI crude oil overlaid so you can see what's driving the pump price.
The long view: US gas prices since 1993
Weekly national average retail regular gasoline from the US Energy Information Administration. This is the chart that puts today into perspective.
Source: EIA series EMM_EPMR_PTE_NUS_DPG (US Regular All Formulations Retail Gasoline, weekly, 1825 data points).
Your personal fuel cost
Plug in your vehicle and see what you're spending on gas each week, month, and year.
12-month context
How today stacks up against the last year in California.
Frequently Asked Questions
Where does the gas price data come from?
State-level retail gasoline prices are sourced from AAA, which surveys roughly 130,000 fueling stations every day via credit-card swipes and direct data feeds (in partnership with OPIS and Wright Express). Crude oil prices come from live futures markets (NYMEX for WTI, ICE for Brent).
How often is the data updated?
AAA publishes new daily state averages around 10:15 AM Eastern each day. Our cron fetches updates hourly and caches them, so prices on this page reflect today's official daily average. Crude oil prices in the live ticker refresh every minute during trading hours.
Why is my state's price different from what I see at the pump?
This is a statewide average across all grades and all stations. Individual stations vary significantly by brand, location (highway exits are usually more), and time of week (Tuesday-Wednesday are historically cheapest).
What makes gas prices go up and down?
The single biggest factor is the price of crude oil, which is set on global markets and typically shows up at the pump 2–3 weeks later. On top of crude, the pump price reflects refining costs, distribution and marketing, and federal plus state taxes (which vary widely by state). Seasonal factors matter too: prices usually rise in spring and summer when refineries switch to more expensive summer-blend gasoline and driving demand peaks.
Can I embed this on my site?
Yes — click the Embed button in the action bar. You can also hit our JSON endpoint at /api/gas-prices/live.php for your own widgets. Attribution to EvvyTools is appreciated but not required.
Why don't you show diesel and premium prices by state?
AAA publishes daily state averages for regular gasoline only. The national diesel average is shown in the ticker. For state-level diesel and premium breakdowns, EIA publishes weekly series — we may add those in a future update.
