Skip to the tool

📽️ Projector Throw Distance

📽️ Projector Throw Distance

Throw ratio = distance to screen ÷ image width. A 1.5:1 lens 3 m from the wall makes a 2 m wide picture. 16:9 assumed unless you change it. Check the projector’s own min/max zoom range.

More in Home & DIY

📺 TV Viewing Distance Calculator Recommend a sofa distance from screen diagonal and resolution. Uses SMPTE 30° field-of-view, THX 40°, and a sharpness…
🧱 Brick Calculator Calculate how many bricks you need for any wall — including mortar joints, waste, and pallets to order. Works for UK…
🌱 Compost Carbon:Nitrogen Balancer Slimy and smelly means too much nitrogen; dry and stubborn means too much carbon. Tell it what’s gone into the heap and…
Curtain Width & Drop Calculator Work out the width needed per curtain panel and the finished drop, with optional hem and heading allowances for…
💡 Downlight Spacing Calculator A common rule is spacing ≈ 0.5–0.75 × ceiling height, with the first lamp about half that from the wall. Check beam…
🧴 Adhesive Selector — Which Glue Sticks This to That? Pick the two things you are joining and the conditions it has to survive, and this works out which adhesive will…
🪵 Board-Foot Lumber Calculator A board foot is 1" × 12" × 12". Enter the dimensions of your boards and the quantity, and get the board footage, linear…
🚗 Car Care & MOT Due-Date Tracker Keeps the dates that are easy to miss and expensive to miss in one place: MOT, tax, insurance, service intervals, and…

All 52 tools in Home & DIY →