Date Calculator

Use this date calculator to add days to a date, subtract days from a date or find the number of days between two dates.

How to use this calculator

• Calculate deadlines and future dates.
• Work out how many days are between two events.
• Check dates carefully when weekends, bank holidays or official deadlines matter.

Before you rely on the result

Calculator results are designed for quick estimates and everyday planning. Check important financial, tax, legal, health or business decisions with an appropriate official source or qualified professional.

Related calculators

You may also need the time calculator or age calculator.

Date Calculator FAQs

What is the date calculator for?

It helps you make a quick estimate and understand the numbers before comparing options or checking official figures.

Are the results exact?

The results are estimates based on the values you enter. Final figures can vary because of rules, fees, rates, rounding or personal circumstances.