FUEL RANGE

Will I make it?

Range read off the fuel needle — no tank size, no MPG

Fuel needle nowdrag — or tap a mark

1/2

of tank

Your car

Range left

190–240mi≈ 310–390 km

rough, by classEnter your distance below and I’ll show the light — make it or not.

Distance to go

miles— km

One observation and I compute it exactly — from how fast your needle dropped. No tank size or MPG needed.

1. The needle was at

2. Since then you’ve driven

miles

3. The needle now reads 1/2 — taken from the gauge above.

Safety reserveI don’t run down to empty

50 mi

Mountains / heat / highway 70+trims the estimate 15% for safety

Dash Range, if shownmiles-to-empty on the panel — I’ll take the lower of the two

≈The needle isn’t linear: the top of the tank "lasts" longer than the bottom. Mark a point again as you drive — Calibrate will recompute more precisely.

↯Dash Range jumps around with driving style and terrain — that’s why I take the lower of my estimate and it.

⛽Numbers are approximate. When it’s close, fuel up early — don’t run on a wing and a prayer.

Works offline · sends nothing · 1 mile ≈ 1.61 km

Refueling in the US

Filling the tank on an American road trip

Knowing your range is half the job; the other half is the refuel itself, and the US has a few habits that catch visitors out. Fuel is sold by the US gallon (3.785 litres), not the litre, and pumps price regular 87, mid-grade 89 and premium 91–93 octane — a regular fill is fine for almost every rental. Most stations are self-service: you pump your own gas. The lone exception is New Jersey, where an attendant must do it for you by law, while Oregon only lifted its self-serve ban in 2023.

At the pump you either pay at the pump by card or prepay inside— many stations, especially at night, won't turn the pump on until you've paid. Pay-at-pump often asks for a US billing ZIP code, which is why foreign cardsfrequently fail there and work better paid inside at the counter. Prices swing a lot by state, so it's worth checking the map before a long leg.