Quarter Calculator
Determine whether a date falls in calendar quarter Q1, Q2, Q3, or Q4.
How to use
- Choose a date.
- Calculate.
- Read the quarter number and calendar year.
Capabilities and scope
The tool groups January-March, April-June, July-September, and October-December into the four standard calendar quarters.
How it works
The zero-based month index is divided by three, floored, and incremented by one. The displayed year is the selected date's calendar year.
Example
August 24, 2026 falls in July-September, so the result is Q3 2026.
Useful for
- Classify quarterly reports
- Group calendar-quarter revenue or schedules
- Convert dates into Q1-Q4 labels
Before you use it
- It does not model fiscal quarters for organizations whose fiscal year starts in another month.
Frequently asked questions
Which quarter contains April?
Q2 in the calendar-year convention.
Does this calculate fiscal quarters?
No. It uses January as the start of Q1.