Smart Calculators for TVs, Screens, Gadgets, and Home Devices

TV Size Calculator

Estimate the best TV size for your room and seating distance.

TV Viewing Distance Calculator

Find a comfortable TV viewing distance based on screen size, aspect ratio, and field of view.

Projector Throw Distance Calculator

Calculate projector lens distance from screen size, aspect ratio, and throw ratio range.

Monitor PPI Calculator

Calculate monitor pixel density, pixel pitch, and perceived sharpness from screen size and resolution.

AC BTU Calculator

Estimate air conditioner cooling capacity from room size, ceiling height, sun, insulation, climate, people, and heat load.

Refrigerator Size Calculator

Estimate refrigerator capacity from household size, grocery habits, freezer needs, and kitchen width.

Washing Machine Capacity Calculator

Estimate washer capacity in kg, cu ft, and pounds from household size, laundry habits, bulky items, and laundry space.

Air Purifier CADR Calculator

Estimate the smoke CADR an air purifier needs from room dimensions, ceiling height, and target air changes per hour.

Dehumidifier Size Calculator

Estimate dehumidifier capacity in pints per day or liters per day from room size, dampness level, ceiling height, and space type.