Everyday Tools
Quick maths for daily life.
GPA Calculator Add your courses with their letter grade and credits to get your weighted GPA on a 4.0 scale. Final Grade Calculator Enter your current grade, your goal and the final's weight to see the score you need on the final exam. Unit Price Calculator Enter the price and quantity of each option to see the cost per unit and which is the best value. Fuel Cost Calculator Enter your trip distance, fuel economy and fuel price to see the fuel needed and the total cost. Electricity Cost Calculator Enter an appliance's power, daily use, your price per kWh and a number of days to see the energy and cost. Speed, Distance & Time Calculator Choose what to solve for and enter the other two values to get speed, distance or time. Paint Calculator Estimate the litres of paint a room needs from its size, coats and coverage, minus openings. Tile Calculator Find how many tiles and boxes you need for an area, including a waste allowance for cuts. Concrete Calculator Calculate concrete volume for a slab in m³ and yd³, plus the number of pre-mix bags required. Recipe Scaler Scale a recipe's ingredient quantities up or down by servings, with tidy fractions in the result. Pizza Comparison Calculator Compare pizza deals by price per unit of area to find which one is genuinely the best value. Gravel Calculator Calculate the volume and weight of gravel for an area and depth, in cubic metres and tonnes.