Length Conversion

Convert between metric and imperial length units. Batch 1 puts weight on mm to inches — decimal inches, nearest 1/64 fractions, charts, and shop-floor specification checks — with a general converter here for every other direction.

Length converter

Same multi-unit tool as the homepage: mm, cm, m, km, inches, feet, yards, and miles. Defaults to millimeters → inches.

1 in = 25.4 mm

  • Batch 1 · primary mm to inches

    Primary hub: formula, bidirectional converter, 0–100 mm chart with nearest 1/64, and “how far off” specification checks.

  • Batch 1 · scene Drill bits & sockets

    Scene decision table — common metric bit/socket sizes with decimal inches, nearest 1/64, and error in millimeters.

  • Batch 2 · hub cm to inches

    Full hub: formula, bidirectional converter, 0–100 cm chart with nearest 1/64, height in feet + inches, and everyday ISO sizes.

Length conversion directions

Every common direction is listed. Live hubs open dedicated pages; stubs and converter-only rows say so honestly — no dead “coming soon” primary CTAs for batch-1 work.

  • mm to inches Live hub

    Full hub with fraction inches, chart, and PAA-style “is it equal?” answers.

  • cm to inches Live hub

    Full hub with decimal, nearest 1/64, feet + inches, charts, height context, and published cm values.

  • inches to cm Via converter

    No dedicated hub yet — use the length converter on this page (in → cm).

  • cm to feet Via converter

    No dedicated hub yet — pick cm and ft in the converter on this page.

  • meters to feet Via converter

    Use the general converter on this page (m ↔ ft).

  • km to miles Via converter

    Use the general converter (km ↔ mi) — deep page not published in batch 1.

  • inches to mm Via converter

    Reverse of the primary hub — use the converter (in → mm) until an inches-to-mm hub ships.

  • feet to inches Via converter

    Use the general converter (ft ↔ in). Dedicated page not in the first batch.

Published mm to inches values

First-batch numeric pages (plus 100 mm). Each reuses the shared conversion engine.

Also on Length Tools