Construction Weather Delay Risk Calculator
Estimate expected weather delay days and a buffer.
Work It Out And Get Clear Answers
Estimate expected weather delay days and a buffer.
Construction Weather Delay Risk 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.
Construction Weather Delay Risk Quick Guide
Typical values for reference.
| Planned working days | Chance of weather loss per day (%) | Expected delay |
|---|---|---|
| 120 | 8 | 9.6 days |
| 60 | 8 | 4.8 days |
| 240 | 8 | 19.2 days |
| 120 | 4 | 4.8 days |
| 120 | 16 | 19.2 days |
| Rule of thumb: check your inputs, use the result as a guide and round sensibly. | ||
Construction Weather Delay Risk FAQ
Answers to common questions about this calculator.
Expected delay = days × probability; buffer adds 0.84 standard deviations of a binomial model.
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.