Calculators: check what size you need before you buy
Put in your room or your devices, get a straight answer, and see only the picks that fit. Free, no sign-up.
- TVTV Size CalculatorHow far you sit + your room → the right TV size, drawn to scale in a 3D room.Open the calculator
- HeatingSpace Heater Size CalculatorRoom size + insulation → the watts and BTU you need, how many heaters, and what it costs to run.Open the calculator
- TVTV Mount Height CalculatorTV size + where you sit → how high to mount it, the angle you look up, and a mount that fits.Open the calculator
- Phone gearPower Bank CalculatorPower bank mAh + your phone → how many full charges, and whether it can go on a plane.Open the calculator
- Home theaterProjector Screen Size CalculatorSeat distance + room → the screen size, where the projector goes and how bright it must be, in 3D.Open the calculator