# Apparel Rejection Rate Calculator

> Turn garment inspection counts into rejection rate, defective percentage, defects per hundred units (DHU) and first-pass yield.

Category: Textile & apparel · Applies to: Worldwide · Last updated: 2026-10-29
Interactive calculator: https://calculators.geekmidst.com/calculators/apparel-rejection-rate-calculator

Garment quality is usually tracked three ways: pieces rejected, pieces with any defect, and defects per hundred units (DHU). Enter one inspection’s counts to get all three.

Also called: Garment rejection calculator, DHU calculator.

## Inputs
- Pieces inspected (unit pcs; default 500)
- Defective pieces (unit pcs; default 40)
- Total defects found (default 52; optional)
- Rejected pieces (unit pcs; default 8)

## Results
- Rejection rate
- Defective pieces
- Defects per hundred units (DHU)
- First-pass yield
- Good pieces after rework

## Formula

```
Rejection % = Rejected ÷ Inspected × 100;  Defective % = Defective ÷ Inspected × 100;  DHU = Defects ÷ Inspected × 100
```

Where:
- Inspected: pieces checked
- Defective: pieces with one or more defects
- Defects: every defect counted, so one piece can have several
- Rejected: pieces that could not be repaired

## Worked example
1. Rejection = 8 ÷ 500 × 100 = 1.6%.
2. Defective = 40 ÷ 500 × 100 = 8%.
3. DHU = 52 ÷ 500 × 100 = 10.4.
4. First-pass yield = (500 − 40) ÷ 500 = 92%.

**Result:** Of 500 pieces, 1.6% were rejected, 8% needed repair and the line ran at 10.4 DHU.

## What the result means

DHU is the best measure of process quality because it counts every defect; rejection rate measures the cost of defects that could not be repaired. Track both per line and per operation.

## Assumptions and limits
- Rejected pieces are a subset of defective pieces.
- Results from a sample inspection only represent the lot if the sample was drawn randomly.

## Questions

### Can DHU be higher than 100?

Yes. Because one piece can carry several defects, DHU can exceed 100 even though defective % cannot.

### What is an AQL inspection?

An acceptance sampling plan that decides from a sample whether to accept a whole lot. This calculator reports the rates you found; it does not apply an AQL table.

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Source: GM¹X CalcVerse — https://calculators.geekmidst.com/calculators/apparel-rejection-rate-calculator