LBPS-S0011

Choose something you have nearby, place it directly against the screen, then adjust the on-screen guide until the sizes match exactly.

For coins, match the full diameter from edge to edge. For the ruler option, match the guide to exactly 50 mm.

Nothing is photographed or uploaded. This calibration is saved only in this browser on this device.

Reference object 10p coin — 24.50 mm 2p coin — 25.91 mm £1 coin — 23.43 mm €1 coin — 23.25 mm €2 coin — 25.75 mm US quarter — 24.26 mm US nickel — 21.21 mm Ruler — 50 mm line