Date Calculator

Add or subtract days, weeks, months, or years from any date. Find a future or past date based on a time interval.

Start date

Operation

Years

Months

Weeks

Days

Select a start date.

How It Works

Select a start date, choose add or subtract, then enter years, months, weeks, and/or days. The calculator accounts for varying month lengths and leap years.

Example: Jan 15, 2025 + 3 months + 10 days = Apr 25, 2025

Related Calculators

Add Days to Date Subtract Days from Date Days Between Dates Date Difference

Last updated: 2026-08-08