# Other Calculators

## Child’s Height Prediction Calculator

Predict a child’s adult height and how much they will grow using the height calculator. It uses the Khamis-Roche Method to accurately estimate future height

## Video Aspect Ratio Calculator

Calculate the aspect ratio of a display for a given resolution. Scale a resolution to a different resolution of the same aspect ratio.

## Window Air Conditioner Size Calculator

Calculate what size of window air conditioner is needed for your room given the room’s size. The calculator find’s the recommended Energy Star air conditioner size based on square footage.

## TV Size and Viewing Distance Calculator

Find the right TV size and seating distance using our handy calculator. The calculator takes viewing angle, TV resolution, and seating distance into account to find the right TV.

## Ohm’s Law Calculator

Calculate watts, volts, amps, ohms, power, voltage, current, and resistance using the Ohm’s Law and Watt’s Law formulas.

## Electricity Cost Calculator

Calculate electricity cost by entering wattage and usage of electricity and the cost per kilowatt-hour. Estimate energy costs and kilowatt-hour electricity usage.

## Lighting Energy Cost Calculator

Estimate the cost of electricity to power the lights in your home. Calculate the cost savings of upgrading to LED or CFL lighting.

## Unit Conversion

Unit of Measurement Conversion Made Easy! There are thousands of units of measure in use across the globe, and converting from one to another can be very difficult since each conversion requires a different formula to derive the result. Our unit of measurement conversion tools are meant to be dead easy. We break the mold […]