Differential Leveling Closure Error Calculator
Closure error of a levelling run.
Work It Out And Get Clear Answers
Closure error of a levelling run.
Differential Leveling Closure Error Estimator
Enter your numbers below for an instant estimate.
How It Works
Key concepts behind this calculator
Enter Values
Fill in each field with your own numbers.
Calculate
Press Calculate to see the result.
Review
Read the breakdown and the explanation.
Adjust
Change values to compare scenarios.
Differential Leveling Closure Error Quick Guide
Typical values for reference.
| Sum of backsights (m) | Sum of foresights (m) | Distance levelled (km) | Closure error |
|---|---|---|---|
| 15.23 | 15.25 | 2 | -16 mm |
| 7.62 | 15.25 | 2 | -7,631 mm |
| 30.46 | 15.25 | 2 | 15,214 mm |
| 15.23 | 7.62 | 2 | 7,607 mm |
| 15.23 | 30.49 | 2 | -15,262 mm |
| Rule of thumb: check your inputs, use the result as a guide and round sensibly. | |||
Differential Leveling Closure Error FAQ
Answers to common questions about this calculator.
Third-order tolerance: 12 mm × √km.
It uses the default inputs shown and the formula described above. Change any value and press Calculate to see how the result moves.
It is an estimate based on the inputs you enter. Check real quotes, labels, product data or official guidance for important decisions.
Yes. Replace each input with your own figures and press Calculate to update the result.