Metric to SAE Socket Size

mm
Conversion

Find the closest SAE (imperial) fraction inch wrench size for a metric measurement.

Formula

inches = mm ÷ 25.4 → nearest SAE 1/16 in fraction
  • SAE wrench sizes are in 1/16 in increments. Closest may not be exact — verify fitment.

Metric to SAE Socket Size Example

Inputs
  • Metric Size: 13 mm

13 mm ÷ 25.4 = 0.5118 in ≈ 8/16 = 1/2 in SAE

Frequently asked questions

How do I use the Metric to SAE Socket Size?
Enter the value in the input field and the result updates immediately.
How accurate is this converter?
Uses internationally recognised conversion factors. Results are rounded to the displayed decimal places.
Can I verify this manually?
Yes — apply the formula shown above step by step.