Home Calculators

Free calculators for home projects: paint, flooring, tile, and energy use. Work out how much you need before you buy.

11 calculators

• Paint Calculator

  Work out how much paint you need for the walls and ceiling of a room.

• Fuel Cost & Gas Cost Calculator

  Estimate the fuel cost of a trip from the distance, fuel economy, and price.

• Cups to Grams Converter

  Convert cups to grams and back for flour, sugar, butter, and other ingredients.

• Square Footage Calculator

  Find the area of a room or lot in square feet and square meters, with cost.

• Gravel Calculator

  Find how many tons and cubic yards of gravel you need for a driveway or path.

• Mulch Calculator

  Find how many cubic yards or bags of mulch you need for your garden beds.

• Solar Panel Calculator

  Estimate how many solar panels you need from your electricity use and sun hours.

• BTU Calculator for Air Conditioners

  Find the BTU per hour of cooling your room needs, and the AC size to buy.

• Wallpaper Calculator

  Find how many rolls of wallpaper you need for a room.

• Sod Calculator

  Find how many pieces or rolls of sod you need for your lawn.

• Flooring Calculator

  Find how many boxes of flooring you need for a room, with extra for waste.