Free Other Calculators

Age, date, unit conversion, speed and fuel-cost calculators for everyday questions.

• Age calculator – Age is the difference between two dates, counted in complete years, months and days.
• Date Difference calculator – The number of days between two dates, also shown in weeks and approximate months.
• Add / Subtract Days calculator – Adds or subtracts a number of days from a date and shows the weekday of the result.
• Length Converter calculator – Each unit is converted to metres and then to the target unit, for example 1 mile = 1609.344 m.
• Weight Converter calculator – Each unit is converted to kilograms and then to the target unit, for example 1 lb = 0.45359237 kg.
• Temperature Converter calculator – °F = °C × 9/5 + 32 and K = °C + 273.15.
• Speed, Distance, Time calculator – Speed = distance ÷ time. Pace (min/km) = time in minutes ÷ distance.
• Fuel Cost calculator – Fuel needed = distance ÷ mileage. Cost = fuel needed × price per litre.