Paint Drying Time Calculator
Recoat and cure time adjusted for conditions.
Enter your values
ⓘ Live results
Results
- Adjusted recoat time
- 8.4 hrs
- Full cure time (approx)
- 50.4 hrs
- Temperature factor
- 1.5
- Humidity factor
- 1.4
Quick answer
Drying time roughly doubles for every 20 degrees below ideal temperature or for high humidity above 60%.
adjusted time = base time x temp factor x humidity factor
How to use the Paint Drying Time Calculator
- 1Enter the label's base recoat time under ideal conditions.
- 2Enter your actual room temperature and relative humidity.
- 3Cold or humid conditions slow drying, so the adjusted time is longer than the label.
Worked example
Using the values the calculator loads with:
Inputs
- Base recoat time (label, 70F/50% humidity)4 hours
- Room temperature60 F
- Relative humidity70 %
Results
- Adjusted recoat time8.4 hrs
- Full cure time (approx)50.4 hrs
- Temperature factor1.5
- Humidity factor1.4
Frequently asked questions
What's ideal painting weather?
About 70F (21C) and 50% relative humidity or lower dries paint closest to the label time.
Why is cure time so much longer than recoat time?
Recoat means dry enough for another layer; full cure (hard, washable) takes several days for most paints.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.