Travel Units
For overseas travel or a posting abroad, choose a destination and every conversion tab is set to the right units. Skip that if you just want to practise converting.
Choosing a country auto-selects the units in each tab.
You can use the tool without choosing.
Choosing a country auto-selects the units in each tab.
You can use the tool without choosing.
Tips
The Sign on the Road Is Already Converted
Type the kilometres from the map and the miles on a US or UK sign are already there. A conversion is the same distance written two ways — except temperature, whose zero is not shared.
The Weather App and the Sign Disagree
A 35 °C heat day in Tokyo is not "35" on a US forecast. Zero Celsius is water freezing; zero Fahrenheit is a different day. You multiply and then shift.
The Airline Printed Kilograms
A 23 kg checked bag is about 50 lb. Weigh the suitcase in the unit on the ticket, not the one on the bathroom scale at the hotel.
The Pump and the Till Use Local Units
US pumps sell gallons; most of the world sells litres. The card machine wants local money. Convert before you stand in the queue — the amounts stay in this browser.
Common Use Cases
A First Drive After Landing
Narita to a US highway: the rental GPS talks kilometres, the signs are miles, and 35 °C on the phone is Fahrenheit on the car display.
The Bag at Check-in
A 23 kg limit is about 50 lb. Convert before you pay for extra weight at the desk.
Fuel on a Rental Car
A US gallon is about 3.8 L; a UK gallon is about 4.5 L. The pump and the contract may not use the same one.
What to Pack for the Forecast
A US forecast in Fahrenheit is not a Japanese heat-day number. Convert the high before you leave the coat at the hotel.
The Price on the Shelf
Yen, dollars, or euros — type the tag and the other currency is already there. Treat the rate as a guide, not a bank quote.
How Big the Room Is
A listing in square feet is not the m² on a Japanese booking site. Convert the floor area before you compare hotels.