Calendar Quarter Calculator
Determine the calendar quarter of a date.
Find the fiscal quarter and dates for a date instantly. Free quarter calculator.
Calculator Inputs
About Quarter
Determine the calendar quarter of a date.
Q1 = Jan–Mar, Q2 = Apr–Jun, Q3 = Jul–Sep, Q4 = Oct–Dec.
Where it is used
Reporting, earnings, deadlines.
How to use the Quarter
- Date — enter the value.
- Calculate — press the Calculate button to see the result instantly above.
Formula
ceil(month / 3).
Examples
Example
date:2026-05-10
Result: Q2
Frequently Asked Questions
- Fiscal quarters?
- Companies may offset (Apr start); this is calendar-standard.