Other Calculators
Handy everyday calculators for dates, school, work, travel, home projects and conversions.
- Age CalculatorCalculate your exact age in years, months and days, plus total weeks, days and hours lived, and the countdown to your next birthday.
- Date CalculatorCount the days, weeks and months between two dates, or add and subtract days, weeks, months and years from a date. Includes business days.
- Time CalculatorAdd or subtract hours, minutes and seconds, or find the duration between two times of day. Results in hh:mm:ss and decimal hours.
- GPA CalculatorCalculate your grade point average on the 4.0 scale from letter grades and credit hours. Add as many courses as you need.
- Grade CalculatorCalculate your current weighted course grade from assignments and exams, and find the score you need on the final to reach your target grade.
- Height ConverterConvert height between feet and inches, centimeters and meters instantly, with a reference chart of common heights.
- Unit ConverterConvert length, weight, temperature, volume, area and speed units: meters, feet, kilograms, pounds, Celsius, Fahrenheit, liters, gallons and more.
- Fuel Cost CalculatorEstimate the fuel cost of a trip from distance, fuel economy (mpg, L/100 km or km/L) and fuel price. Works for one-way and round trips.
- Hours CalculatorCalculate hours worked between a start and end time minus breaks for each day of the week, with weekly totals in hours and minutes, decimal hours and pay.
- Concrete CalculatorEstimate how much concrete you need for a slab, footing or round column in cubic yards and meters, plus the number of 40, 60 and 80 lb bags.
- Electricity Cost CalculatorWork out what an appliance costs to run per day, month and year from its wattage, hours of use and your electricity price per kWh.
- Military Time ConverterConvert military (24-hour) time to standard 12-hour time and back instantly, with a full conversion chart from 0000 to 2300.