Yearly fuel cost of the school run.

A 6-mile round trip done twice a day on 190 school days at 35 MPG and 6.50 per gallon costs 423 a year — and that ignores parking and the wear on the car. Carpooling, walking, or moving closer to school all become more attractive once the number is on paper.

What the result means

Annual fuel cost is the direct fuel spend. Annual miles shows total mileage added to the car. Compare to the cost of after-school clubs, walking buses, or a different school choice.

The math handles drop-off and pick-up as one round trip per day. If you do separate drop-off and pick-up trips (rather than a round trip with the kids in the car each way), set round-trip distance to the combined drop-and-collect mileage.

Run it with sensible defaults

Using round-trip miles of 6, trips per day of 2, school days per year of 190, mpg of 35, the calculation works out to 423.43. Nudge the inputs toward your own situation and the output recalculates instantly. The defaults are meant as a starting point, not a recommendation.

The levers in this calculation

The inputs — Round-Trip Miles, Trips Per Day, School Days Per Year, MPG, and Fuel Price Per Gallon — do not pull with equal force. Frequency and unit price pull the total in different directions. The biggest surprise for most people is how small recurring amounts compound into large annual figures — that's where this calculation earns its keep.

How the math works

Annual miles equals round-trip distance times trips per day times school days. Annual fuel use equals annual miles divided by MPG. Annual cost equals annual fuel use times fuel price per gallon. The working is transparent — you can verify every step yourself in the formula section below. No black box, no opaque "proprietary model".

When to actually change the habit

Most lifestyle spending delivers real value. The exceptions are the ones that stopped delivering months ago but got auto-renewed anyway, and the ones chosen out of defaults rather than preference. Run this, then audit for those two categories — that's where the easy wins live.

What this doesn't capture

The tool prices the money; it can't weigh the enjoyment. A coffee habit, gym membership, or streaming bundle might cost what the math says but deliver value that's harder to quantify. Use the number to make the trade-off visible — the decision is yours.