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Calculate the difference between dates, add or subtract days. Use our free date calculator online tool — instant results, no upload, completely private.
No account · No upload · No watermark · Works on any device
Navigate to the Date Calculator tool — no download or installation needed.
Drop your file or paste your data. Everything stays in your browser, nothing is uploaded.
Processing happens instantly on your device. Download or copy your result.
Count days until a deadline
Calculate age from birth date
Find the date N days from today
Calculate percentages, percentage change, and percentage of a number.
Convert salary between hourly, daily, weekly, biweekly, monthly, and yearly amounts.
Calculate your Body Mass Index and see your weight category.
Calculate tips and split bills between multiple people.
No signup, no upload, 100% private. Works right in your browser on any device.
Open Date Calculator