How do I use the Date ± Days Calculator?
Enter your values in the fields and the result updates instantly as you type.
Date ± Days Calculator
Add or subtract days from a date.
Format: YYYY-MM-DD (Year-Month-Day)
Use negative for subtraction
Results
Formula: New Date = Start Date ± Days
Invalid value for this calculator. Please enter valid numbers.
Frequently asked questions
What formula does this calculator use?
New Date = Start Date ± Days
Can I use decimal values?
Yes. Decimal inputs are supported for most calculators. Integer-based tools use rounded integer values where appropriate.
Is this calculator free?
Yes. CalcuNimble calculators are free and optimized for fast everyday use.