Tools

Quarter Calculator for Calendar Quarters

Determine which calendar quarter a date falls in.

Quarter Calculator

Find the calendar quarter for a given date to support reporting and planning. This helps align metrics and timelines with standard quarter boundaries.

How to use the Quarter Calculator

  1. Select a date.
  2. Click Calculate.
  3. Copy the quarter result.

Common use cases

  • Grouping metrics by calendar quarter.
  • Planning quarterly goals.
  • Labeling reports and dashboards.
  • Aligning milestones with Q1–Q4.

Tips & notes

  • Calendar quarters differ from fiscal quarters.
  • Use ISO dates for consistent input.
  • Pair with fiscal tools if your org uses a custom calendar.

Related time tools

  • Fiscal Year Calculator
  • Fiscal Quarter Boundary Finder
  • Month Calendar Generator

FAQ

How are quarters defined?
Q1: Jan–Mar, Q2: Apr–Jun, Q3: Jul–Sep, Q4: Oct–Dec.
Is this fiscal or calendar?
This tool uses calendar quarters.
Can I change the quarter boundaries?
Use the Fiscal Year Calculator for custom starts.