Quarter Calculator (Which Quarter a Date Falls In)
Enter a month number (1 for January through 12 for December) to find which calendar quarter it falls in.
Quarter Calculator (Which Quarter a Date Falls In)
Find which calendar quarter (Q1–Q4) a given month falls in.
This calculator provides an estimate for general informational purposes only. It is not a substitute for professional financial, mechanical or engineering advice.
Calendar quarters split the year into four 3-month blocks; this calculator maps any month number to its corresponding quarter.
Example
- With the default values shown above, this calculator returns: Calendar Quarter ≈ 3.
Frequently Asked Questions
How are quarters defined?
Q1 = January–March, Q2 = April–June, Q3 = July–September, Q4 = October–December, using the standard calendar-year quarter definition.
What about fiscal years that don't start in January?
This calculator uses the standard calendar-year quarters. If your fiscal year starts in a different month, you'll need to shift the month number accordingly before entering it.