Tools · Calculator
Unit converter
Inches to millimetres — including fractions like 1 3/16 — plus temperature and weight. Exact conversion factors (1 in = 25.4 mm), ideal for identifying inch bearings.
Inch ↔ millimetre
°C ↔ °F
Kilogram ↔ pound
Measured bearing dimensions with odd millimetre values (e.g. 25.4 × 57.15 × 15.875 mm) indicate an inch bearing — find matching types in the inch range or via the bearing finder.