Relationship Duration Calculator
Find out exactly how long you and your partner have been together — in years, months, days, hours, and minutes.
You have been together for:
year, month, day
week and day
hour, minute, and second
How to Use
- Enter your name and your partner’s name in the input fields.
- Select your relationship start date using the date picker.
- Click the "Calculate Duration" button to see how long you’ve been together, formatted in several time units.
About This Tool
This Relationship Duration Calculator helps you celebrate milestones and reflect on the time you’ve shared together. It provides an accurate calculation down to the seconds, working instantly on your device and correctly accounting for leap years and varying month lengths.
Use it to remember anniversaries, plan celebrations, or simply reflect on the journey you’ve taken as a couple. The countdown considers your local time zone and runs completely offline in your browser.