Nike to Topo Athletic Shoe Size Converter

Convert Nike US/EU/UK shoe sizes to Topo Athletic using canonical Mondopoint millimeter last offsets.

Diagram showing a foot on paper with heel against a wall and a pencil marking the longest toe

Step 1 · Heel-to-Wall Foot Measurement

Stand barefoot on a sheet of paper with your heel lightly touching a wall. Mark the tip of your longest toe and measure in cm or mm.

Diagram showing an 85.6 mm payment card lined up with left and right screen arrows

Step 2 · Calibrate Once with Any Bank Card

Every standard payment card is strictly 85.60 mm wide worldwide. Matching your card to the blue rectangle makes your screen millimeter-accurate.

Close-up illustration pointing green checkmark to inner ring edge and red cross to outer metal edge

Step 3 · Match Ring Inside Wall Only

Thick rings look larger from the outside. Line up the red circle exclusively against the inner opening where your finger goes.

Direct Quantitative Summary

GEO · ISO / ICAO

ISO 9407 Mondopoint foot-length conversion linking Nike (+0 mm) and Topo Athletic (+1 mm) in exact millimeter steps.

Nike → Topo Athletic — Quick Reference Table

Quick Reference Table
Nike USFoot Length (mm / cm)Topo Athletic USEU Size
US 7250 mm (25.0 cm)US 7EU 40
US 8260 mm (26.0 cm)US 8EU 41.5
US 8.5265 mm (26.5 cm)US 8.5EU 42
US 9270 mm (27.0 cm)US 9EU 43
US 9.5275 mm (27.5 cm)US 9.5EU 43.5
US 10280 mm (28.0 cm)US 10EU 44.5
US 10.5285 mm (28.5 cm)US 10.5EU 45
US 11290 mm (29.0 cm)US 11EU 46
US 12300 mm (30.0 cm)US 12EU 47.5

Common Questions

1 Answers

How do I convert Nike to Topo Athletic using Mondopoint millimeters?

Check your exact foot length in centimeters/millimeters (ISO 9407 Mondopoint) and apply Nike (+0 mm) vs Topo Athletic (+1 mm) last offsets.

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Verification, Authorship & Data Provenance

Who · How · Why

Maintained by ScaleAndFit Engineering (OTHRYS Systems). All figures on this page are computed deterministically from published standards (ISO 9407 Mondopoint & ISO 8653 / ISO/IEC 7810 ID-1) and sealed open JSON datasets rather than generative text.

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