Shrink Percentage Calculator | Easily Find Fabric or Material Shrinkage Rates

Use the Shrink Percentage Calculator to Instantly Find Fabric or Material Shrinkage Rates. Shrinkage is the percentage change between an object’s original size and its reduced or final size. It’s commonly used in manufacturing, textiles, and various industries to measure how much an object has reduced in size.

Shrink Percentage Calculator – Instantly Find Fabric or Material Shrinkage Rates

Original Length or Size

Enter the initial measurement (e.g., length in cm, inches, or area in sq units).

Final Length or Size

Enter the measurement after shrinkage (use the same unit as above).

Measurement Unit Centimeters (cm) Inches (in) Meters (m) Feet (ft) Other / Custom

Choose the unit of measurement. Units must match for both values.

Shrinkage Type Linear (Length/Width) Area (e.g., sq cm, sq in)

Select "Linear" for single dimension, "Area" for 2D (e.g., fabric area).

Notes or Description (optional)

Add a description for your record (optional).

Example Presets:

Cotton T-shirt: 100cm → 96cm (Linear, cm)

Denim Jeans: 40in → 38.5in (Linear, in)

Wool Blanket: 2m² → 1.85m² (Area, m)

Synthetic Sheet: 120ft² → 119ft² (Area, ft)

Custom Fabric: 250 → 247 (Linear, Custom)

Calculate Reset

Calculating shrinkage…

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The Formula for Shrink Percentage

The formula for calculating shrink percentage is:

Shrink Percentage = ( Original Size −Final Size​ / Original Size ) × 100

Explanation of the Formula

• Original Size: This refers to the initial or starting size of the object.
• Final Size: This denotes the size of the object after it has undergone a change, such as shrinkage or reduction.

The formula subtracts the final size from the original size to determine the difference. Then, it divides this difference by the original size and multiplies by 100 to express the change as a percentage.

Using the Shrinkage Calculator

1. Enter the original size of the object in the “Original Size” field.
2. Enter the final size of the object in the “Final Size” field.
3. Click the “Calculate” button to compute the shrink percentage.
4. The calculated shrink percentage will appear in the “Shrink Percentage” field.

Example

Suppose the original size of an object is 100 units, and it reduces to a final size of 75 units.

Using the formula:

Shrink Percentage = ( 100 − 75​ / 100) × 100

= (25 / 100​) × 100

= 25

Therefore, the shrink percentage in this case would be 25%.