How much will gas cost for my road trip?
A road trip gas calculator should answer two questions: what the fuel will cost, and how to divide it without an argument at the last stop. Trip Cost Calculator does both on a map, so you plan the route and the money in one place.
Type a place into Add a stop or click the map to drop a pin. Each pair of pins becomes a leg, joined by a red string, and the leg list shows the distance, the fuel it burns, the price used and the cost. Enter your Vehicle MPG, click the gas sign to set a price per gallon, and the Trip total appears in the panel under Who owes what.
The map, the city search and the highway routing are built in, so a trip can be planned with no signal. When you are online, legs in covered areas are priced from that week's average instead of the single price you typed.
How to calculate gas cost for a trip
The arithmetic behind every leg is simple: distance divided by MPG gives gallons, and gallons times the price gives the cost. A 180-mile leg in a car that gets 30 MPG burns 6 gallons; at $3.30 a gallon that is $19.80.
What makes the estimate good or bad is the distance. Where a major highway on the built-in map links two stops, the leg follows it. Elsewhere the straight-line distance is stretched by the Road estimate in Settings, from Straight line up to Winding roads. If your odometer or a navigation app says otherwise, click the leg's distance and type the real number; everything downstream recalculates.
Gas money calculator for riders who join part of the way
Dividing the total by the number of people is unfair the moment someone gets picked up halfway. Here, each leg is split equally among the people riding that leg. Add riders under Add a rider, then mark who was aboard on each leg.
Take the 180-mile leg above plus a 120-mile second leg that costs $13.20, for a $33.00 trip. The driver and Sam ride both legs; Alex gets out after the first. The first leg splits three ways at $6.60 each, the second two ways at $6.60 each. Alex owes $6.60, Sam and the driver $13.20 each, and the shares add up to the total exactly.
Turn off The driver pays a share and riders split each leg among themselves while the driver rides free. When the numbers are settled, Copy split puts the whole breakdown on the clipboard as plain text for the group chat.
Trip planner with gas stops and weekly prices
Enter your tank size and the route shows a fuel pump wherever you would be down to the level set in Mark a fill-up at, a quarter tank unless you change it to an eighth or a half. It assumes you set off full, which makes it a quick way to see whether a long empty stretch needs a planned stop.
The Gas prices tab shows the latest weekly averages on a station-style sign, from regular grade to diesel, with the change since last week and since a year ago. Choose United States or Europe, then the area. Prices convert to whichever of the 19 currencies you set, and the Units switch moves everything to kilometers, liters and L/100 km.
