Calculators & Size Guides
Quick answers for buying and using the things we review, with every number sourced.
Home
- TV Size CalculatorScreen size for your seating distance, and real TV dimensions by size.
- Mattress SizesBed size chart in inches, feet and cm, and which beds fit your room.
- Pillow SizesStandard, queen, king and euro pillow dimensions, and how many fit your bed.
- TV Power ConsumptionWatts and yearly electricity cost for real TVs by size, from ENERGY STAR and EU label data.
- Refrigerator SizesStandard and counter-depth fridge dimensions, and whether a fridge fits your space.
- BTU CalculatorWhat size air conditioner your room needs, from the ENERGY STAR sizing chart.
- Desk Height CalculatorSitting and standing desk, chair and monitor height for your height.
Kitchen
- Coffee Ratio CalculatorGrams, tablespoons and scoops of coffee for drip, French press, pour over and cold brew.
- Rice to Water RatioWater for white, jasmine, basmati, brown and wild rice on the stove, in a rice cooker or an Instant Pot.
- Air Fryer ConversionConvert oven temperatures and times to an air fryer, with cooking times by food.
Fitness
Travel & Tech
- Carry-On Size CheckerCarry-on and personal item limits by airline, and whether your bag fits.
- mAh to Wh CalculatorConvert power bank capacity to watt-hours and check whether you can fly with it.
- Keyboard SizesFull size, TKL, 75%, 65% and 60% keyboards drawn to scale, and which size you need.
- Sensitivity ConverterConvert mouse sensitivity between games, with cm/360 and eDPI.
- 3D Printing Cost CalculatorFilament, electricity and selling price for a 3D print.