Rideshare fare split calculator for different drop-offs

When to use this calculator

Use it when friends share one ride but get out at different places, so an equal split would overcharge whoever leaves first. A typical case is an Uber or Lyft where three people start at the same pickup and the last rides on alone. When everyone goes the whole way, an equal split is right. For a private car with gas and tolls, use the carpool cost calculator, and for the message to send the group, see how to split an Uber or Lyft fare.

How does the calculator split the fare?

Every stretch of the ride is paid for equally by the riders still in the car. A rider who leaves at distance 3 pays for the first 3 only, and the rider who goes the farthest also pays for the last stretch alone.

1. Add the tip: total = fare × (1 + tip ÷ 100).
2. Rank the riders from the nearest drop-off to the farthest, which cuts the ride into stretches.
3. Price each stretch as the total × (stretch length ÷ the farthest distance).
4. Divide each stretch among the riders still in the car and add up each rider’s stretches.

The calculator opens on a $40 fare with a 20% tip, which makes a $48.00 total, and three riders going 12, 8 and 3 miles. The last stretch costs the most per person, because the farthest rider covers it alone.

Stretch	Cost	Riders in the car	Each pays
0 to 3 miles	$12.00	3	$4.00
3 to 8 miles	$20.00	2	$10.00
8 to 12 miles	$16.00	1	$16.00

The rider who leaves at 3 pays $4.00. The rider at 8 pays $4.00 + $10.00 = $14.00, and the rider at 12 pays $4.00 + $10.00 + $16.00 = $30.00.

How far from an equal split is that?

The longest ride pays $14.00 more than an equal split and the shortest saves $12.00.

Rider goes	Pays	Equal split	Difference
12 miles	$30.00 (62.5%)	$16.00	$14.00 more
8 miles	$14.00 (29.2%)	$16.00	$2.00 less
3 miles	$4.00 (8.3%)	$16.00	$12.00 less

The 3 mile rider covers a quarter of the distance but pays 8.3% of the total, because two others were in the car for those miles.

What does it do with leftover cents?

It rounds every share down, then hands the spare cents, one at a time, to the shares with the largest remainders. Take a $47.30 fare with no tip and riders going 9, 6 and 2.5 miles. The exact shares are $29.3435, $13.5769 and $4.3796. Rounded down they add up to $47.28, so two cents are left, and they go to the 2.5 mile and 6 mile riders: $29.34, $13.58 and $4.38, which make $47.30. A last line adds the shares up so you can check.

Riders at the same distance pay the same, and if a spare cent is left between them it goes to the lower rider number.

What does the calculator assume?

• One shared pickup. Everyone starts in the car together. If someone joins partway, treat the part after they join as its own ride with its own share of the fare.
• The whole total grows with distance. A toll or an airport fee on one stretch should come out first and go back to the riders on that stretch. Say the receipt shows $46 and $6 of it is a toll on the last stretch. Enter $40 with the 20% tip, then add $6 to the farthest rider’s $30.00, which makes $36.00.
• Nothing is recorded and no money moves. It only shows numbers.

Common mistakes

• Entering the gaps between drop-offs. Each box is the distance from the pickup. Riders who get out after 3 miles, then 5 more, then 4 more enter 3, 8 and 12, not 3, 5 and 4.
• Adding the tip twice. The tip box already puts the tip into the total. Leave it at 0 when the fare you typed includes the tip.

How do you keep track of the shares in EvenOut?

Add one expense for the total with tip, choose “Exact amounts” for the split and type each rider’s share. The pill reads “All assigned” when the shares add up to the total, and EvenOut keeps splits cent-accurate. For other uneven splits, try the unequal split calculator or the split by shares calculator, and put a ride that is one part of a bigger outing in the trip cost per person calculator.