Torque wrench extension correction
Find the wrench setting that applies your target torque when an extension, crowfoot or adapter is mounted in line with the wrench. At 90° no correction is needed.
Torque · extension correction
v0.1.0 · inline extensionSet the wrench to85.71Same unit as the target. L and E in any one length unit, measured centre to centre.
setting = target × L ÷ (L + E) · extension in line with the wrench; at 90° no correction
Test vectors for this tool
The reference cases this calculator is tested against on every change. Use them to check your own software. All test vectors · Download JSON
| ID | Inputs | Expected | Tolerance | Source |
|---|---|---|---|---|
| TRQ-05 | target = 100, wrenchLength = 18, extension = 3 | 85.71428571 same as target | ± 5e-9 | setting = target × L ÷ (L + E) = 100 × 18 ÷ 21 |
| TRQ-06 | target = 100, wrenchLength = 18, extension = 0 | 100 same as target | ± 1e-12 | No extension: setting equals target |
Put this calculator on your site
Free for labs, schools and anyone else. Paste this into your page.
<iframe src="https://metrologybench.com/embed/torque-extension" title="Torque wrench extension correction · Metrology Bench" width="100%" height="460" style="border:0;max-width:640px" loading="lazy"></iframe>
Ask your AI
Connect metrology-toolbox-mcp and your assistant runs this exact calculation, with the source in the answer.