How do I split carpool costs fairly?

Enter your trip expenses (gas, tolls, parking), add passengers with their travel distances, choose your split method (by distance or evenly), and hit Calculate Split to see everyone's fair share.

What's the difference between distance and even split?

Distance split divides costs based on how many miles each person travels - those going farther pay more. Even split divides costs equally among all passengers regardless of distance.

What expenses should I include?

Include gas, tolls, parking fees, and any other trip-related costs like snacks or cleaning fees. You can add custom expenses as needed.

Can I save and share the results?

Yes! Use the Save & Share button to download an image of your split calculation that you can text or email to your carpool group.

Is my information secure?

Absolutely! All calculations happen in your browser - no data is stored or sent to any servers. Your trip details stay completely private.

How do I exclude the driver from paying or make the driver pay less?

Use By Distance and enter 0 miles for the driver to exclude them, or enter a smaller distance to reduce their share. Even split always includes everyone equally.

Can I use kilometers instead of miles?

Yes. Enter distances in km for all riders—the formula uses ratios so the units don’t matter as long as they’re consistent.

How do I handle round trip distances?

Add the outbound and return distances for each rider and enter the total. Example: 10 out + 10 back = 20 total for that rider.

How do I split a fixed per‑person fee (e.g., venue entry)?

Multiply the per‑person fee by the number of riders, add it to Trip Expenses, then choose your split method. The total will be divided according to your selection.

Can I apply a discount or reimbursement?

Yes. Enter a negative expense (e.g., −5.00) to represent a coupon, employer reimbursement, or refunded toll, then recalculate.

How do I make rounding add up exactly to the total?

Round each share to two decimals, then adjust any remaining cents as a small extra expense, or tweak one rider’s share by a cent to match the total.

Can I split an Uber/Lyft/ride‑share receipt?

Yes. Enter the ride total as a single expense and choose Split Evenly, or estimate rider distances and use By Distance for a fairness adjustment.

Weekly commute: how do I create a fair monthly split?

Sum each rider’s monthly distance (days × round‑trip distance) and enter those totals, then use By Distance to get fair monthly shares.

How do I split carpool costs fairly?

Enter your trip expenses (gas, tolls, parking), add passengers with their travel distances, choose your split method (by distance or evenly), and hit Calculate Split to see everyone's fair share.

What's the difference between distance and even split?

Distance split divides costs based on how many miles each person travels - those going farther pay more. Even split divides costs equally among all passengers regardless of distance.

What expenses should I include?

Include gas, tolls, parking fees, and any other trip-related costs like snacks or cleaning fees. You can add custom expenses as needed.

Can I save and share the results?

Yes! Use the Save & Share button to download an image of your split calculation that you can text or email to your carpool group.

Is my information secure?

Absolutely! All calculations happen in your browser - no data is stored or sent to any servers. Your trip details stay completely private.

How do I exclude the driver from paying or make the driver pay less?

Use By Distance and enter 0 miles for the driver to exclude them, or enter a smaller distance to reduce their share. Even split always includes everyone equally.

Can I use kilometers instead of miles?

Yes. Enter distances in km for all riders—the formula uses ratios so the units don’t matter as long as they’re consistent.

How do I handle round trip distances?

Add the outbound and return distances for each rider and enter the total. Example: 10 out + 10 back = 20 total for that rider.

How do I split a fixed per‑person fee (e.g., venue entry)?

Multiply the per‑person fee by the number of riders, add it to Trip Expenses, then choose your split method. The total will be divided according to your selection.

Can I apply a discount or reimbursement?

Yes. Enter a negative expense (e.g., −5.00) to represent a coupon, employer reimbursement, or refunded toll, then recalculate.

How do I make rounding add up exactly to the total?

Round each share to two decimals, then adjust any remaining cents as a small extra expense, or tweak one rider’s share by a cent to match the total.

Can I split an Uber/Lyft/ride‑share receipt?

Yes. Enter the ride total as a single expense and choose Split Evenly, or estimate rider distances and use By Distance for a fairness adjustment.

Weekly commute: how do I create a fair monthly split?

Sum each rider’s monthly distance (days × round‑trip distance) and enter those totals, then use By Distance to get fair monthly shares.

Carpool Cost Splitter

Split gas, tolls and parking fairly — by distance or evenly. Save and share the breakdown.

Trip Expenses

Passengers

miles

How to Split Costs

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Enter trip details above to split costs

How It Works

Add trip expenses like gas, tolls and parking. Then add each passenger with the miles they travel.

Choose a split method: by distance (fairly adjusts by miles) or evenly (same amount for everyone).

Distance Split = Total Cost × (Your Miles ÷ Total Miles)
Even Split = Total Cost ÷ Number of Passengers

Worked Example

Example: split $52.00 (gas $40, tolls $8, parking $4) by distance for 3 riders: 12, 8, 4 miles → Total miles = 24. A = 52 × (12/24) = $26.00; B = 52 × (8/24) ≈ $17.33; C = 52 × (4/24) ≈ $8.67.

Common Scenarios

Daily commute

Split regular commuting costs fairly based on distance each colleague travels.

Road trip

Include gas, tolls and parking for weekend getaways and long-distance drives.

Airport pickup

Add parking and tolls, then split by miles from pickup to drop-off.

Event carpool

Share costs for concerts, sports games, and conferences—by distance or evenly.

Carpool Cost Splitter

How It Works

Worked Example

Common Scenarios

Daily commute

Road trip

Airport pickup

Event carpool

Best Practices

Regional Notes

FAQ

How do I split carpool costs fairly?

What's the difference between distance and even split?

What expenses should I include?

Can I save and share the results?

Is my information secure?

How do I exclude the driver from paying or make the driver pay less?

Can I use kilometers instead of miles?

How do I handle round trip distances?

How do I split a fixed per‑person fee (e.g., venue entry)?

Can I apply a discount or reimbursement?

How do I make rounding add up exactly to the total?

Can I split an Uber/Lyft/ride‑share receipt?

Weekly commute: how do I create a fair monthly split?

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