Quarter Calculator
Find which calendar quarter (Q1-Q4) any date falls in.
- Free to use
- Accurate results
- No registration required
- Works on all devices
Enter any date to find which calendar quarter (Q1-Q4) it falls in.
Your result
3
Calendar quarter
Day of the year255
AI explanation
Formula
Quarter = calendar month grouped into Jan-Mar (Q1), Apr-Jun (Q2), Jul-Sep (Q3), Oct-Dec (Q4)Worked example
2026-09-12
| Field | Value |
|---|---|
| Date | 12-09-2026 |
| Calendar quarter | 3 |
| Day of the year | 255 |
Assumptions
- Uses the standard calendar-year quarter definition (Q1 = Jan-Mar). For India's fiscal-year quarters (Q1 = Apr-Jun), use the Fiscal Year Calculator instead.
Frequently asked questions
Is this the calendar quarter or the fiscal quarter?
This is the standard calendar-year quarter (Q1 = January-March). For India's April-March fiscal year quarters, use the Fiscal Year Calculator instead.
Why does quarter numbering matter?
Many businesses report results, plan budgets, or set deadlines by calendar or fiscal quarter rather than by month.
What months are in each quarter?
Q1: January-March, Q2: April-June, Q3: July-September, Q4: October-December.