Weeks calculator

Count the weeks between two dates, or find the date a number of weeks from now. Handy for pregnancy, projects, notice periods and training plans.

Last updated: October 28, 2026 · By Furkan Çetinkaya · About & Methodology

Weeks calculatorSaveShare

I want to

Count weeks between datesAdd or subtract weeks

Start date

Weeks

—

Embed this calculator on your website

Copy this code into your page. It's free — please keep the link to Abacurio.

<iframe src="https://abacurio.com/embed/en/weeks-calculator/" title="Weeks calculator" width="100%" height="620" style="border:0;max-width:720px" loading="lazy"></iframe> <p style="font:13px sans-serif"><a href="https://abacurio.com/weeks-calculator/">Weeks calculator</a> — free calculator by Abacurio</p>Copy code

How is it calculated?

Weeks = days between the dates ÷ 7

The result is shown as whole weeks plus leftover days, and as a decimal. The end date is not counted, so from Monday to the next Monday is exactly 1 week.

Common questions

How many weeks are in a year?

52 weeks and 1 day (52 weeks and 2 days in a leap year).

How many weeks until a date?

Leave the start date as today and enter the target date as the end date.

More date and time calculators

• Months calculatorMonths between two dates, or add and subtract months.
• Days to weeks, months and years converterConvert days, weeks, months and years into each other.
• Week number calculatorWhat week is it? ISO week number for any date.
• Day of the week calculatorWhat day of the week was or will be any date?
• Time calculatorAdd or subtract hours, minutes and seconds.
• Age calculatorExact age in years, months and days.
• Days between dates calculatorDays, weeks, months and working days between two dates.
• Add days to a dateDate after adding or subtracting days, weeks, months or years.

All calculators