DIN ISO 286
Tolerance calculator
Free online tolerance calculator according to ISO 286. Calculate deviations and fit type for hole and shaft.
Tolerance calculator
Deviations and fit type according to ISO 286 — common positions, values in µm (= 0.001 mm)
mm
Common fits
Nominal size ø25 mm · Range >24 – 30 mm
Transition fit
Depending on the actual dimensions, either clearance or interference occurs.
Hole H7
ES = +21 µm / EI = 0 µm
ES = +0.021 mm / EI = 0.000 mm
Shaft k6
es = +15 µm / ei = +2 µm
es = +0.015 mm / ei = +0.002 mm
Max. clearance19 µm / 0.019 mm
Max. interference15 µm / 0.015 mm
Calculation according to ISO 286 - All information without warranty - Nominal size range 0-500 mm
Clearance fit
The smallest hole is at least as large as the largest shaft. Clearance remains, or a limit case with 0 µm clearance.
Transition fit
Depending on the actual dimensions, either clearance or interference occurs. Typical for centered, detachable joints.
Interference fit
The smallest shaft is at least as large as the largest hole. The joint holds through interference.