• Tip Amount Calculator
    Calculate tip and total bill at any custom percentage, and split the total between any number of people. Fast, free tip calculator for any currency.
  • Liters to Gallons Fuel Converter
    Convert liters of fuel to US gallons and Imperial gallons instantly. Free liters-to-gallons converter with exact conversion factors for both systems.
  • Per Diem Travel Allowance Calculator
    Calculate your total per diem travel allowance from daily rate and trip length, with an optional 75% rate for the first and last travel day.
  • Arrival Local Time Across Time Zones Calculator
    Calculate your arrival local time after a flight across time zones. Enter departure time, flight duration and UTC offsets to get destination local time and day offset.
  • Foreign Currency Price Comparison Calculator
    Convert a foreign-currency price into your home currency using the current exchange rate. Quickly compare prices while traveling or shopping online.
  • Fahrenheit to Celsius Travel Converter
    Convert Fahrenheit to Celsius instantly for travel. Enter any °F temperature and get the exact °C value using C = (F − 32) × 5/9.
  • Linear Luggage Dimensions Calculator
    Add your bag's length, width and height to get its linear dimensions and instantly check whether it fits an airline's L+W+H size limit.
  • Kilometers to Miles Converter
    Convert kilometers to miles instantly with this free calculator. Uses the exact factor 1 mile = 1.609344 km for accurate distance conversion.
  • Fuel Range Calculator
    Calculate how far you can drive on a tank of fuel. Multiply litres in the tank by your km per litre to get your estimated driving range.
  • Pounds to Kilograms Baggage Weight Converter
    Convert your baggage weight from pounds (lb) to kilograms (kg) instantly. Check against airline weight limits before you fly. kg = lb / 2.20462262.
  • Pace to Speed Converter
    Convert running pace (minutes per km) to speed in km/h and m/s instantly. Enter your min/km pace and get your speed using Speed = 60 / Pace.
  • Hotel Cost Per Night & Total Stay Calculator
    Calculate your total hotel cost including tax and fees, plus the average cost per night and the cost split per guest for any length of stay.
  • Days Until Trip Countdown Calculator
    Count down the days until your next trip. Enter your departure date and today's date to see exactly how many days and weeks remain.
  • Trip Carbon Footprint (Flight) Calculator
    Estimate the CO₂ emissions of a flight from distance, passengers and emission factor. Calculate your trip's carbon footprint in kg and tonnes instantly.
  • Time of Arrival (ETA) Calculator
    Estimate your time of arrival (ETA) from distance, average speed, departure time, and stop breaks. Shows arrival on a 24-hour clock plus days over.
  • Trekking Pace & Arrival Time Calculator
    Calculate your hiking pace (min/km) from distance and time, then estimate remaining walking time and your arrival clock time for the rest of the trail.
  • Daylight Remaining for Hike Calculator
    Find out how much daylight is left before sunset and whether you'll finish your hike before dark. Compare daylight to your estimated hike time instantly.
  • Suitcase / Luggage Volume Calculator
    Calculate suitcase and luggage volume in litres from length, width and height, plus the linear (L+W+H) dimension airlines use for size limits.
  • Restaurant Tip & Bill Split Calculator
    Calculate the tip and split any restaurant bill evenly between friends. Enter the bill, tip percentage, and number of people for a per-person amount.
  • Travel Money & Daily Spending Calculator
    Convert your total travel budget into daily spending money in the local currency. Enter budget, trip days, and exchange rate to plan your trip.
  • Car Rental Total Cost Calculator
    Estimate the total cost of a car rental including daily rate, insurance, fuel, taxes and extras. See your per-day cost instantly.
  • Maximum Operating Depth (MOD) Nitrox Calculator
    Calculate the Maximum Operating Depth (MOD) for any nitrox blend from its oxygen fraction and target ppO₂ limit. Results in meters and feet for safe scuba diving.
  • Equivalent Air Depth (EAD) Nitrox Calculator
    Calculate the Equivalent Air Depth (EAD) for any nitrox mix and depth in metric units. Find the air-equivalent nitrogen depth for safer dive planning.
  • Scuba SAC / RMV Air Consumption Calculator
    Calculate your scuba SAC and RMV air consumption rates from gas used, dive time, depth and cylinder size in metric (bar/litres) units.