Costing out the drive
The Road Trip Cost Splitter works out what the driving actually costs and how you split it between friends. The MPG to L/100km Converter makes sense of a European spec sheet, and the Tire Size Comparer shows whether a new wheel setup will throw off your speedometer. The Quarter Mile & 0-60 Converter handles performance figures, and the Lease vs Buy Calculator compares the two ways of paying for the car itself.
Bags, sleep and spending
Before you fly, the Luggage Size Checker tells you if your bag clears carry-on limits, and the Packing List Generator builds a list from your trip length and climate. The Jet Lag Planner maps out when to start shifting your sleep, and the Flight Time Estimator gives you a realistic block time. On the ground, the Travel Budget Calculator, Per Diem Calculator and Tipping Guide by Country keep the money side honest.
Coordinates that never leave
Distance Between Coordinates, the Coordinate Converter (DMS) and the Compass Bearing Calculator handle the navigation maths for hiking, sailing or surveying. Every sum is worked out on your own phone or computer, right there on the page you are looking at. Your itinerary, your GPS coordinates, your salary figures and your travel dates are never sent anywhere, because there is nothing on the other end to receive them. Close the tab and nothing is left behind.
Frequently asked questions
How do I convert MPG to L/100km?
Divide 235.215 by your US MPG figure to get L/100km, and divide 235.215 by an L/100km figure to convert back. UK imperial MPG uses a larger gallon, so the constant there is 282.481. The relationship is inverse rather than linear, which is why going from 20 to 25 MPG saves far more fuel over a year than going from 40 to 45. The MPG to L/100km Converter handles both gallon types.
Do these car and travel tools work without an account or an internet connection?
Yes to both. Every tool here does its work on your own phone or computer, so there is no sign up, no email capture and nothing to upload. Nothing you type in, whether that is GPS coordinates, flight times, lease figures or a daily budget, ever leaves your device. Once a tool page has finished loading it keeps working with no connection, which helps on a plane, in a rental car abroad, or anywhere roaming data is expensive.
How do you split road trip costs fairly between friends?
Pool every shared expense first, including fuel, tolls, parking, accommodation and food, then divide the total by the number of travellers instead of tracking who happened to tap their card at each stop. Fuel itself is total miles divided by your MPG, multiplied by the price per gallon. If someone joined for only part of the route, weight their share by the distance they actually travelled. The Road Trip Cost Splitter does both and shows who owes whom.