⚡ California stations hit $8.06/gal in 2022. The next spike is one geopolitical event away.⚡ Gas hit $8.06/gal (CA, 2022). It will happen again.

Gas Hit $8.06.
Know Exactly What
Your Commute Costs. Split It Fairly.

The average commuter burns $312/year covering someone else's gas. SplitGas uses AI + live government prices to calculate the exact number.

No card · No signup to see your number · Prices from the same database the U.S. Dept. of Energy publishes

⚡ $3.98/gal nationally — up $1.00 in 30 days — summer blend adds 30¢ more · The average driver left $1,400 on gas last year. Yours can be lower. · Carpooling cuts your gas bill in half. SplitGas makes sure half is actually half. · 50 states. Live EIA.gov government prices. Every car since 1984. · AI watching your state’s gas prices. So you don’t have to. · The person in your passenger seat could be paying $156 of your monthly gas bill. · ⚡ $3.98/gal nationally — up $1.00 in 30 days — summer blend adds 30¢ more · The average driver left $1,400 on gas last year. Yours can be lower. · Carpooling cuts your gas bill in half. SplitGas makes sure half is actually half. · 50 states. Live EIA.gov government prices. Every car since 1984. · AI watching your state’s gas prices. So you don’t have to. · The person in your passenger seat could be paying $156 of your monthly gas bill. ·

The math that's costing you $156 a month

You Pulled Up to the Pump.
Again.

Gas is $3.98 a gallon and climbing. One passenger cuts your monthly bill from $312 to $156 — if you split it fairly. Most drivers guess, and the guess is always lower than the truth.

SplitGas gives you the exact number. Sourced from EIA.gov. To the cent.

One calculation. The fair number.
Send it. Collect it.
Stop leaving money on the table.

HOW IT WORKS

30 Seconds to the Number
You Should Have Had All Along

Your car. Your state's real price. Your rider's fair share. In the time it takes to park.

Pick Your Vehicle

Select your car from every make, model, and year since 1984. Real EPA MPG data — not the manufacturer's optimistic number, not your guess. Enter the distance. That's your part.

We Fetch Today's Real Price

SplitGas detects your state and pulls this week's EIA.gov price — the same number the U.S. Department of Energy publishes. Not the national average. Your state's actual price, sourced live from the federal government.
When your rider asks "are you sure that's right?" — you show them where the number came from. The conversation ends there.

EIA.gov Live

Collect What's Fair

Your rider's exact share appears — including any detour miles. Log the trip. Tap Request. A Venmo, Zelle, or Interac charge goes to their phone, pre-filled to the penny, with a note that explains exactly what it's for.
They pay. You drive away. No group chat. No "I'll get you next time." No guessing.

$1,400

avg. annual gas left on table

states covered

accurate gov. splits

to calculate your first split

YOUR NUMBER — FREE

Find Out How Much
You've Been Leaving Behind

Calculate your exact split below. No signup. No card. Most drivers are surprised by what they see.

What does your car actually burn? (MPG)→ Look up your real EPA numberHow far is the drive — one way? (miles)

How many people are splitting this?

Gas price this week (your state, $/gal)Using national average · The app uses your exact state price

The app uses your state's exact EIA.gov price — typically more accurate than the national average.

AI Savings Coach

Based on your commute, you could recover $147/month by splitting with just one rider. That's the equivalent of 3 streaming subscriptions — money you're currently handing to your passenger for free every single week.

7-Day Price Outlook · CA

Gas prices in California are trending upward this week. Consider filling up today and consolidating errands to minimize your fuel spend.

Unlock AI Insights

Start Free Trial →

No credit card required

Why drivers trust the number SplitGas gives them.

The U.S. Government Is Your Source

Gas prices from EIA.gov — the Dept. of Energy's weekly database. Same numbers AAA cites. Impossible to dispute.

Your Car Is in Here

Every make, model, and year from 1984 to 2026. Real EPA MPG data. If you drive it in the US, we have it.

We Know Almost Nothing About You

No address stored. No real names. Pickup addresses used for math — then gone. Venmo handle stays on your device. That's it.

Legal in All 50 States. Already.

Cost-sharing carpools are legal everywhere under federal guidance. Standard U.S. auto insurance covers it. SplitGas calculates the legal amount — never a dollar more.

Your Number in 30 Seconds

No account to see your first result. Enter three inputs. See the exact split. Decide if you want to save it.

First 10,000 Users Free

Up to 30 days free for early adopters. No credit card. Cancel in two clicks. Then $4.99/mo or $29.90/yr. Every day of your trial, you're recovering what you've been leaving behind.

✓ Live EIA.gov Prices

✓ 15K+ Vehicles

✓ AI-Powered

REAL DRIVERS · REAL DOLLARS RECOVERED

They Were Leaving
This Much Behind.
Every Month.

These are commuters, gig workers, and daily drivers — just like you. This is what the math revealed when they stopped guessing.

★★★★★

“I knew I was probably undercharging Kyle. I just didn't know by how much. SplitGas told me in 30 seconds — $3.80 short per trip. Five days a week. I was giving him $190 a month for free. I showed him the EIA breakdown. He didn't argue. He just said 'yeah, that's fair' and started paying the right amount.”

— Marcus T.

Pasadena, CA · Honda CR-V · 28-mile commute

Recovered: $190/month · $2,280/year

★★★★★

“My coworker thought I was padding the gas money. I pulled up SplitGas, entered the route, showed him the EIA.gov price for Texas that week. He looked at the screen. Looked at me. Said 'send me the Venmo request.' That was it. No drama. No argument. Just the math.”

— James R.

Austin, TX · Ford F-150 · 22-mile commute

Awkward conversation: permanently eliminated

★★★★★

“DoorDash told me I made $23 on a run last Tuesday. I put SplitGas in, entered the miles, the gas price, my MPG. Real fuel cost: $6.40. I was actually making $16.60. Not $23. I restructured my zone based on that. I'm making more now by doing fewer, smarter runs.”

— Sofia K.

Chicago, IL · Toyota Corolla · Gig driver

True earnings: finally visible. Routes: restructured.

🚗 [XX,XXX]+ gas splits calculated across all 50 states

Drivers stopped guessing and started recovering.

WHAT SPLITGAS DOES WHILE YOU DRIVE

Not a Calculator.
A Financial Co-Pilot
for Every Carpool Mile.

GasBuddy finds cheap gas. Splitwise splits dinner bills. Neither one tells you what your rider actually owes you for Tuesday's commute — calculated with your state's real price, your car's real MPG, and the extra miles you drove to pick them up. That's the gap SplitGas owns. And nobody else is in it.

The Number Nobody Argues With

EIA.gov updates every Tuesday. Your state's price — not a national average, not a pump sign that hasn't refreshed. The same source the U.S. Department of Energy publishes. When your rider pushes back, you don't argue. You show them the source. The conversation ends.

The Miles You Went Out of Your Way CountPRO

You drove 2.4 extra miles to pick them up. That's gas you paid for that they should share. SplitGas calculates the detour cost separately — so your rider pays for the extra distance, and you stop absorbing it silently.

Every Trip Logged. Every Balance Current.

Three trips this week. Ahmed paid for two. SplitGas shows you the running balance without you touching a spreadsheet, sending a text, or doing any math at all. "Hey, you owe me for Tuesday" becomes a Venmo notification they received automatically.

One Tap. The Money Moves.

Tap Request. A Venmo charge goes to their phone — pre-filled to the exact cent, with a note explaining exactly what it covers. They tap Pay. You don't ask. You don't chase. You just collect.

What Your Carpool Is Actually Worth — In Plain EnglishPRO

After every calculation, your AI Savings Coach translates the numbers into something real: "This carpool is saving you the equivalent of one car payment every four months." Not a percentage. Not a chart. A sentence that actually means something.

Should You Fill Up Today or Wait Until Thursday?PRO

SplitGas AI analyzes 8 weeks of your state's EIA data plus crude oil market direction — and tells you whether prices are likely rising or falling this week. One practical tip. Every week. The kind of edge that used to require a Bloomberg terminal.

🌱 THE ENVIRONMENTAL DIVIDEND

Every Carpool
Costs the Planet Less.

SplitGas tracks CO2 savings on every trip. Two carpoolers sharing a 20-mile commute eliminate 6.9 lbs of CO2 — per trip.

That's 1,794 lbs/year. One car's entire annual footprint.

Your result screen shows exactly how much you saved — in dollars and in carbon.

THE MATH IS SIMPLE

The Math Is Simple.

$8.06

peak / gallon

$312

wasted/yr

$156

recovered

$2.49

per month

By the fourth number, the price of SplitGas is less than the loss you're already absorbing.

★ BEST VALUE — SAVE 50%

Annual plan

$2.49/month

billed as $29.90/year

Live EIA.gov prices — your state, every Tuesday
Every car since 1984 — real EPA MPG data
Exact fair splits — including detour miles
Running balance per rider — always current
One-tap Venmo requests — pre-filled to the cent
SMS reminders — so they don't forget to pay
Shareable breakdown links — no app for your rider
AI Savings Coach — what your carpool means in real money
7-day gas price forecast — fill up today or wait?
Cancel anytime — takes 10 seconds

Start Free — Up to 30 Days →

14-day money-back guarantee · No credit card to start

or pay $4.99 month-to-month →

Less than what you're probably undercharging your riders every week.

No credit card required · Cancel anytime · No app to download

FAQ

You Have Questions.
The Math Has Answers.

In most cases, yes — and faster than you expect. The Venmo request arrives on their phone pre-filled to the exact cent, with a note that says "SplitGas — [date] trip." The amount is backed by EIA.gov government data. When your rider opens the request and sees the government source, the psychological dynamic shifts — they're not evaluating your request, they're looking at a federal data point. Most drivers report their riders pay within minutes. The ones who push back are shown the EIA source, and the conversation ends there.

More accurate than the pump sign. More accurate than GasBuddy. As accurate as the U.S. government's own published data. SplitGas pulls weekly state-level prices from EIA.gov — the Energy Information Administration, which is the official federal source for fuel price data. Updated every Tuesday. Your state's actual price, not a national average that might be $0.40 off from where you live. Pro subscribers can also enter their exact pump price for any trip where they want perfect accuracy down to the cent.

Nothing. Not an app. Not a browser extension. Not an account. Your rider receives a Venmo charge notification or a copy-amount for Zelle. They open their existing payment app. They pay. SplitGas is invisible to them — all they see is the amount and the reason. That's all they need.

Legal in all 50 states. Already covered by your insurance. Cost-sharing carpools — where the driver charges riders only for actual fuel costs and makes no profit — are legal under federal guidance and every state's framework. The U.S. Department of Transportation explicitly distinguishes these from commercial transportation. Your standard personal auto insurance policy (ISO PAP language, used by most U.S. insurers) explicitly carves out share-the-expense carpools from the livery exclusion. You are already covered. SplitGas calculates the legal, cost-recovery amount — never more.

It's in there. Every make, model, and year from 1984 to 2026 — over 40 years of vehicles, all with real EPA fuel economy data from fueleconomy.gov. If you drive it in the US, SplitGas has it. If you'd prefer to use your own observed MPG, you can enter it manually. Your number, your choice.

Almost nothing. By design. We don't store your home address. We don't store your route. We don't know your rider's real name — only the nickname you give them. Pickup addresses used for detour calculations are used for math and then discarded. Never stored. Never logged. Your Venmo handle, if you add one, stays on your device only. It never reaches our servers. We built SplitGas to know as little about you as possible while still doing its job accurately. That's not a privacy policy promise. That's the architecture.

The trial is the full product. Every feature. No limits. No watermarks. No "trial version" restrictions. Early users get up to 30 days free. Calculator: always free, forever. Trip log: free during trial, view-only after. AI features (Savings Coach, Price Forecast): free during trial, locked after. Share cards: free during trial with watermark, no watermark when subscribed. After the trial, the calculator stays free forever — you can always calculate your split without paying anything. The subscription unlocks the co-pilot layer: tracking, AI insights, balance management, payment requests. $4.99/month or $29.90/year (save 50%) to run the co-pilot. $0 to see your number.

Three things. All of them save you money or time. First: after every calculation, it translates your savings into something human. "This carpool saves you the equivalent of one car payment every four months." Numbers become meaning. Second: it analyzes 8 weeks of your state's EIA price data plus crude oil market direction, and tells you whether gas prices are likely rising or falling this week — and whether to fill up today or wait. One tip, once a week. Third: it finds cheaper gas stations on your actual route and tells you exactly how much you'd save by stopping there. Not the cheapest station in the city — the cheapest one you'd drive past anyway. None of this requires you to do anything. It runs in the background. You drive. It works.

Completely. And it might matter more for you than for commuters. If you're doing DoorDash, Instacart, Uber, or any delivery work — gas is likely your single biggest variable expense. The platforms tell you what you earned. They don't tell you what you actually earned after fuel. SplitGas tracks fuel cost per run. You see your real earnings — not the platform's number. Drivers who start tracking this routinely discover they're earning $4–8/hour less than they thought, and restructure their zones accordingly. You can't optimize what you can't measure. The platform won't measure it for you. SplitGas will.

Yes — SplitGas works across all Canadian provinces. Gas prices come from Natural Resources Canada (NRCan), the official federal source for fuel data. The calculator uses kilometres and L/100km for Canadian users, and payment requests are optimized for Interac e-Transfer — the payment method every Canadian bank supports. Same fair split math. Same government-backed prices. Same privacy-first architecture. The subscription is $4.99/month USD.

THE GAS BILL ISN'T GOING DOWN. YOUR SHARE OF IT IS.

Gas went up. Again.
You filled up. Again.
You covered the whole bill. Again.

Not next time.

Calculate your split.
Send the request.
Collect what you're owed.

SplitGas. Starts free.

No card · No signup to calculate · Cancel in two clicks · The math is always on your side

💼 SplitGas for Teams

Help your employees split commute costs — reduce parking demand and Scope 3 emissions.

Learn More →

Gas Hit $8.06.Know Exactly WhatYour Commute Costs. Split It Fairly.

You Pulled Up to the Pump.Again.

30 Seconds to the NumberYou Should Have Had All Along

Pick Your Vehicle

We Fetch Today's Real Price

Collect What's Fair

Find Out How MuchYou've Been Leaving Behind

They Were LeavingThis Much Behind.Every Month.

Not a Calculator.A Financial Co-Pilotfor Every Carpool Mile.

The Number Nobody Argues With

The Miles You Went Out of Your Way CountPRO

Every Trip Logged. Every Balance Current.

One Tap. The Money Moves.

What Your Carpool Is Actually Worth — In Plain EnglishPRO

Should You Fill Up Today or Wait Until Thursday?PRO

Every CarpoolCosts the Planet Less.

The Math Is Simple.

You Have Questions.The Math Has Answers.

Find Out How MuchYou've Been Leaving Behind

They Were LeavingThis Much Behind.Every Month.

Not a Calculator.A Financial Co-Pilotfor Every Carpool Mile.

The Number Nobody Argues With

The Miles You Went Out of Your Way CountPRO

Every Trip Logged. Every Balance Current.

One Tap. The Money Moves.

What Your Carpool Is Actually Worth — In Plain EnglishPRO

Should You Fill Up Today or Wait Until Thursday?PRO

Every CarpoolCosts the Planet Less.

The Math Is Simple.

You Have Questions.The Math Has Answers.

Gas Hit $8.06.
Know Exactly What
Your Commute Costs. Split It Fairly.

You Pulled Up to the Pump.
Again.

30 Seconds to the Number
You Should Have Had All Along

Find Out How Much
You've Been Leaving Behind

They Were Leaving
This Much Behind.
Every Month.

Not a Calculator.
A Financial Co-Pilot
for Every Carpool Mile.

Every Carpool
Costs the Planet Less.

You Have Questions.
The Math Has Answers.

Find Out How Much
You've Been Leaving Behind

They Were Leaving
This Much Behind.
Every Month.

Not a Calculator.
A Financial Co-Pilot
for Every Carpool Mile.

Every Carpool
Costs the Planet Less.

You Have Questions.
The Math Has Answers.