To calculate casting shrinkage, subtract the shrinkage amount from the original size. The shrinkage amount is found by multiplying the original size by the shrinkage rate (in percentage) and dividing by 100. This will give you the final size after shrinkage.

## Casting Shrinkage Calculator

Enter any 2 values to calculate the missing variable

The **Casting Shrinkage Calculator** helps calculate the final size of a cast after accounting for shrinkage. By inputting the original size and the shrinkage rate, the calculator determines how much the casting will shrink during cooling, ensuring accurate final dimensions for various materials like steel and aluminum.

### Formula:

$FS = OS – (OS \times \left( \frac{SR}{100} \right))$

Variable | Description |
---|---|

FS | Final Size after shrinkage |

OS | Original Size before shrinkage |

SR | Shrinkage Rate (in percentage) |

**Example Calculation:**

Let’s assume the **Original Size (OS)** of a casting is 200 mm, and the **Shrinkage Rate (SR)** is 5%.

Using the formula:

$FS = 200 – (200 \times \left( \frac{5}{100} \right)) = 200 – (200 \times 0.05) = 200 – 10 = 190 \text{ mm}$

So, the final size after shrinkage is 190 mm.

Step | Calculation | Result |
---|---|---|

1 | Multiply Original Size (OS) by Shrinkage Rate (SR) | $200 \times 0.05 = 10$ mm |

2 | Subtract this value from the Original Size (OS) | $200 – 10 = 190$ mm |

**What is the Casting Shrinkage Calculator?**

The **Casting Shrinkage Calculator** is a tool used to determine the final size of a cast after shrinkage. During the cooling phase, castings shrink, and this calculator helps predict how much smaller the final product will be compared to its original dimensions. It’s essential for manufacturers working with metal or **sand casting shrinkage calculations**.

Using the **metal casting shrinkage calculator**, you can enter the original size and the shrinkage rate to compute the final size. This tool helps ensure that parts meet the required dimensions even after shrinkage. Whether you’re working with **steel**, **aluminum**, or **die casting**, it’s critical to account for shrinkage when planning the casting process.