METRIC TO SAE WRENCH CONVERSION
MetricSAEΔ(%)Δ(in)
1
2
3 1/8 5.83% 0.00689
★★★★ 4 5/32 -0.78% -0.00123
5 3/16 -4.75% -0.00935
6 1/4 5.83% 0.01378
★★★ 7 9/32 2.05% 0.00566
★★★★ 8 5/16 -0.78% -0.00246
★★ 9 11/32 -2.99% -0.01058
10 3/8 -4.75% -0.01870
★★★ 11 7/16 1.02% 0.00443
★★★★ 12 15/32 -0.78% -0.00369
★★★ 13 1/2 -2.31% -0.01181
★★★ 14 9/16 2.05% 0.01132
★★★★ 15 19/32 0.54% 0.00320
★★★★ 16 5/8 -0.78% -0.00492
★★★ 17 21/32 -1.95% -0.01304
★★★ 18 23/32 1.42% 0.01009
★★★★ 19 3/4 0.26% 0.00197
★★★★ 20 25/32 -0.78% -0.00615
★★★ 21 13/16 -1.73% -0.01427
★★★ 22 7/8 1.02% 0.00886
★★★★ 23 29/32 0.08% 0.00074
★★★★ 24 15/16 -0.78% -0.00738
★★★ 25 31/32 -1.57% -0.01550
Source: www.mikebrady.com/misc/metric-sae.php