Date Calculator - Add Days, Count Days and Compare Dates
Add or subtract calendar days, answer what date is 30 days from today, compare two dates, and copy the result date, ISO value, direction, or CSV.
Free tools, no signup, always close at hand
ToolNest is completely free, requires no registration, includes a growing set of practical tools, and keeps adding more. Bookmark the ToolNest website so you can find it again when you need a quick tool.
Tip: press Ctrl/Command + D to bookmark the ToolNest website.
What this tool is for
Enter a base date and days to add or subtract, or compare two dates for schedules, deadlines, invoices, travel plans, renewals, and reminders. Use Business Day Calculator when weekends must be excluded.
Related tools
Continue with common ToolNest utilities
Date Calculator is part of a wider browser toolbox. These links help users and crawlers move from this page into nearby daily tasks.
Frequently asked questions
Is Date Calculator free?
Yes. ToolNest provides Date Calculator as a free browser-based utility.
Does Date Calculator require an account?
No account is required. Open the tool and use it directly in your browser.
Can Date Calculator add or subtract days from a date?
Yes. Enter a base date and a positive or negative number of calendar days. ToolNest shows the resulting date, ISO date, direction, and absolute day distance.
Can Date Calculator answer what date is 30 days from today?
Yes. Use the Today + 30 shortcut or choose today's date and enter 30 days. The result summary is shown on the first screen and can be copied immediately.
Can Date Calculator count days between two dates?
Yes. Enter the first date as the base date and use the day difference mode to compare dates. The result explains the direction and day distance so it can be copied into schedules, forms, or planning notes.
Does Date Calculator count business days or calendar days?
This Date Calculator adds and subtracts calendar days. Use the ToolNest Business Day Calculator when you need to exclude Saturdays, Sundays, or compare weekdays and weekends.
How do I use Date Calculator?
Open the Date Calculator page, enter or paste your values, use the visible controls, and copy the result from the first working area. It is grouped with Date & Time for quick browsing.
Can I copy results from Date Calculator?
Yes. ToolNest tools are designed around copy-ready output, so you can reuse the result in documents, spreadsheets, code editors, forms, or messages without creating an account.