Distance and Travel
Speed, fuel cost and trip-planning calculators for travel.
Planning a trip or just trying to estimate how long a drive will actually take usually means juggling speed, distance and fuel cost figures that don't come with a built-in calculator on most map apps. This category covers speed-distance-time calculators, fuel cost and mileage calculators, and other trip-planning math, built to switch cleanly between metric and imperial units so a distance in kilometres and a fuel efficiency rating in miles per gallon don't need to be manually converted before you can compare them. These are useful for budgeting a road trip's fuel cost ahead of time, working out how long a journey will take at a given average speed, or comparing two vehicles' running costs over the same distance. Every calculator here shows the underlying formula, distance equals speed times time, fuel cost equals distance divided by efficiency times price per unit, so the result is something you can double-check or adapt, not a black box.