Calculate financial or calendar quarters
Quarter: --
Year: --
Understanding which quarter a date belongs to is essential for businesses, accountants, and financial planners. With the Quarter Calculator by AlllinTools.com, you can instantly determine whether your date falls in Q1, Q2, Q3, or Q4. This free online tool helps you calculate fiscal and calendar quarters accurately.
A quarter calculator is an online tool that determines which financial or calendar quarter a date falls into. Each year is divided into four quarters:
Some businesses may start their fiscal year in months other than January, so the Financial Quarter Calculator adjusts for both calendar and fiscal year calculations.
This tool provides a fast, accurate, and free way to find the quarter of any date. Perfect for accountants, business owners, analysts, and students.
Example: For 15 July 2025 → Quarter: Q3, Start: 1 Jul 2025, End: 30 Sep 2025, Fiscal Year: 2025–26.
| Date | Quarter | Start Date | End Date | Fiscal Year |
|---|---|---|---|---|
| 10 March 2025 | Q1 | 1 Jan 2025 | 31 Mar 2025 | 2025 |
| 17 July 2025 | Q3 | 1 Jul 2025 | 30 Sep 2025 | 2025 |
| 5 November 2025 | Q4 | 1 Oct 2025 | 31 Dec 2025 | 2025 |
The Quarter Calculator is the easiest way to find financial and calendar quarters. From fiscal quarter identification to date-to-quarter conversion, it’s a complete tool for business and personal use.