How to use the hex nut across flats and corners calculator
Convert the across flats size of a hexagon into across corners and side length. Enter across flats distance in the field above; the across corners, side length are computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “hex nut across corners”, “hexagon across flats”, “spanner size to corners”, “calculate hex nut across flats and corners”, “find across corners”.
Formula
Variables
- af — Across flats distance (mm)
Worked example
With across flats distance = 17 mm, the calculator gives across corners ≈ 19.62991 mm; side length ≈ 9.814955 mm.
Frequently asked questions
What is the hex nut across flats and corners calculator used for?
Convert the across flats size of a hexagon into across corners and side length. It helps with questions such as “hex nut across corners”, “hexagon across flats”, “spanner size to corners”.
What is the formula for the hex nut across flats and corners calculation?
Across corners (mm) = af × 2 / √(3). Side length (mm) = af / √(3). Here af is across flats distance (mm).
What inputs do I need for the hex nut across flats and corners calculator?
You need across flats distance in mm. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use the hex nut across flats and corners calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the hex nut across flats and corners result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.