Transportation & Travel

  • Gas Trip Cost Calculator
    Estimate the gas cost of any road trip. Enter distance, your car's MPG, and the gas price per gallon to see total fuel cost and gallons needed.
  • Knots to MPH & KM/H Converter
    Convert knots to miles per hour and kilometers per hour instantly. Enter a speed in knots to get accurate mph and km/h values.
  • MPH to KM/H Converter
    Convert miles per hour (mph) to kilometers per hour (km/h) instantly. Uses the exact factor 1 mph = 1.609344 km/h for accurate speed conversion.
  • Trip Fuel Cost Calculator
    Estimate the fuel cost of any road trip. Enter distance, MPG and fuel price to get total gas cost and gallons needed instantly.
  • Shipping Box Volumetric Weight Calculator
    Calculate the volumetric (dimensional) weight and volume of a shipping box from its length, width, height and the carrier dimensional divisor (5000, 6000 or 4000).
  • Trucking Cost Per Mile Calculator
    Calculate your trucking cost per mile (CPM) by dividing total fixed and variable costs by miles driven. Free CPM calculator for owner-operators.
  • Average Speed Calculator
    Calculate average speed from total distance and total time. Free average speed calculator using distance ÷ time — works for any units.
  • Per Diem Calculator
    Calculate total per diem allowance from a daily rate, full travel days and partial travel-day percentages. Free, fast and accurate online tool.
  • Hotel Occupancy / Lodging Tax Calculator
    Calculate hotel occupancy and lodging tax on your stay. Enter room rate, nights, and tax rate to see room cost, tax, and total.
  • 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.
  • 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.
  • Flight Time Calculator
    Estimate flight duration from distance and cruise speed, plus a taxi/climb overhead. Get gate-to-gate hours and minutes for any route, any units.
  • Road Trip Fuel Cost Calculator
    Estimate the fuel cost of any road trip. Enter distance, MPG, and price per gallon to instantly see total fuel spend and gallons used.
  • Fuel Cost Calculator
    Estimate the gas cost of any trip from distance, vehicle MPG, and fuel price. See total cost, gallons needed, and cost per mile instantly.
  • Gas Mileage / Fuel Economy Calculator
    Calculate gas mileage and fuel economy in MPG (US), MPG (Imperial), km/L and L/100km from distance and fuel used, plus trip fuel cost.
  • Fuel Economy Calculator
    Calculate your vehicle's fuel economy in MPG from distance driven and fuel used. Also converts to L/100km and km/L instantly.
  • Latitude Longitude Distance Calculator
    Calculate the great-circle distance between two latitude/longitude coordinates using the Haversine formula. Results in km, miles, and nautical miles.
  • Dimensional Weight Calculator
    Calculate dimensional (DIM) weight and billable shipping weight from package dimensions and a DIM divisor (139, 166, 5000 or 6000).
  • Walking Time from Distance Calculator
    Convert a walking distance to minutes on foot using Japan's 80 m/min real-estate standard. Adjustable speed and units, precise to the second.
  • True Airspeed Calculator
    Estimate true airspeed (TAS) from calibrated airspeed (CAS) and pressure altitude using the 2% per 1,000 ft rule of thumb for pilots.
  • Wind Correction Angle Calculator
    Calculate the wind correction angle, required heading, and ground speed from your true airspeed, wind speed, course, and wind direction.
  • Density Altitude Calculator
    Calculate density altitude from pressure altitude and outside air temperature (OAT) using the standard aviation rule of thumb. Free and instant.
  • Walking Time to Distance Calculator
    Convert "X minutes on foot" from Japanese property listings into walking distance in meters and km, using the standard 80 m/min advertising rate.
  • Volumetric (Dimensional) Weight Calculator
    Calculate the volumetric (dimensional) weight of a package from its length, width and height using truck, sea or air freight conversion factors.

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