Technology Calculators

Technology questions usually come down to a number: how large a screen the room can carry, how far back the sofa should sit, whether the jump to a higher resolution actually buys anything. The calculators in this category replace that guesswork with a measurement. The TV distance calculator works in both directions — give it your seating distance and it recommends a screen size, or give it a screen size and it returns the distance range that keeps the picture immersive without making you turn your head. Screen sizes are the diagonal in inches, the way manufacturers label them; distances come in feet and inches or in metres, whichever you prefer. Enter your numbers and read off the answer.