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Tolerance Stack Up Calculator
Calculate worst-case and RSS tolerance stack-up for an assembly.
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Calculate worst-case and RSS tolerance stack-up for an assembly.
Tolerance Stack Up Estimator
Enter your numbers below for an instant estimate.
0
💡 Tip: Worst case = sum; RSS = sqrt(sum squares).
How It Works
Key concepts behind this calculator
1
Enter Values
Fill in each field with your own numbers.
2
Calculate
Results update as you change the inputs.
3
Review
Read the breakdown and the explanation.
4
Adjust
Change values to compare scenarios.
Quick Reference Guide
Tolerance Quick Guide
Typical values for reference.
| T1/T2 ±mm | T3 ±mm | T4 ±mm | Worst case |
|---|---|---|---|
| 0.05 / 0.05 | 0.05 | 0.05 | ±0.20 |
| 0.1 / 0.15 | 0.05 | 0.2 | ±0.50 |
| 0.2 / 0.2 | 0.2 | 0.2 | ±0.80 |
| 0.5 / 0.1 | 0.1 | 0.1 | ±0.80 |
| Rule of Thumb | Check inputs | Use as a guide | Round sensibly |
Common Questions
Tolerance Stack Up Calculator FAQ
Answers to common questions about this calculator.
Sum.
It gives a quick estimate of tolerance stack up from the values you enter.
No. It is a planning estimate, so check important figures with a professional or official source.
Yes. Edit any field and the result updates when you calculate.