Concrete Curing Time Calculator
Estimate how many days concrete needs to reach a target strength at a given temperature.
Work It Out And Get Clear Answers
Estimate how many days concrete needs to reach a target strength at a given temperature.
Concrete Curing Time 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.
Concrete Curing Time Quick Guide
Typical values for reference.
| Average temperature (°C) | Target strength (% of 28-day) | Days to target strength |
|---|---|---|
| 20 | 70 | 6.91 days |
| 10 | 70 | 13.83 days |
| 40 | 70 | 1.73 days |
| 20 | 35 | 1.99 days |
| 20 | 140 | -29.47 days |
| Rule of thumb: check your inputs, use the result as a guide and round sensibly. | ||
Concrete Curing Time FAQ
Answers to common questions about this calculator.
Uses the maturity rule strength = t/(4+0.85t) at 20 °C, with curing speed roughly doubling every 10 °C. Always follow your engineer’s specification before removing formwork.
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.