Hardware Spares Calculator

Calculate how many identical fittings to order with a spare allowance.

Tool Operation Area

Calculate how many identical fittings to order with a spare allowance.

Worked Example

Required fittings: 20 pieces; Spare allowance: 10 %.

Result: 22 pieces.

How It Works

  • Round up required fittings × (1 + spare percentage ÷ 100).
Round up required fittings × (1 + spare percentage ÷ 100).
Schematic diagram of the calculation.

How to Use

  1. 1Enter required fittings in pieces.
  2. 2Enter spare allowance in %.
  3. 3Select Calculate to see the result.

FAQ

Is this an exact workshop measurement?

The result follows the formula shown above. Check measurements and allow for real-world variation.

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