Rebar Hook, Bend & Cutting Length Calculator

Get the exact cutting length to order or cut a bar. Enter the straight length, number of hooks and bends — the tool adds 9d per hook and deducts 1d/2d/3d for 45°/90°/135° bends.

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How to use: Rebar Hook, Bend & Cutting Length Calculator

Enter the straight (out-to-out) length.
Enter the number of hooks and each type of bend.
Read the cutting length in mm and m.

Formula

Cutting length = straight length + (hooks × 9d) − (45°×1d + 90°×2d + 135°×3d).

See the full rebar weight chart (kg/m & lb/ft) →

Rebar Hook, Bend & Cutting Length Calculator — FAQ

What is the hook length of rebar?

A standard 180° hook adds about 9 × bar diameter to the cutting length.

Why do we deduct for bends?

Bending a bar shortens its outside length, so a deduction (1d–3d) is applied per bend.