Date Add/Subtract Calculator

Add or subtract days, weeks, months, and years from any date with business day calculations.

Use positive numbers to add time, negative numbers to subtract time

Planning Options

Plan Your Dates, Deadlines, and Milestones

Add or subtract days, weeks, or months to find future or past dates. Plan deadlines, schedules, and milestones with options to skip weekends and holidays.

Instant Results

Get results as you type with our optimized calculation engine

Precise Calculations

Handle leap years, month boundaries, and all date complexities correctly

Planning Insights

See working days, excluded periods, and planning efficiency metrics

Plan Ahead Scenarios

Scheduling

  • Calculate future date excluding weekends
  • Plan project milestones
  • Set review dates

Business Planning

  • Plan delivery schedules
  • Set payment due dates
  • Calculate service timeframes

Deadlines

  • Add workdays to invoice or contract dates
  • Set deadline skipping weekends and holidays
  • Calculate target dates for tasks

Compliance

  • Calculate filing deadlines
  • Determine notice periods
  • Plan contract expirations

Frequently Asked Questions