4-5-4 Retail Calendar Calculator — NRF Period, Quarter & Week Finder
Enter any date to find the NRF retail fiscal year, period (P1–P12), quarter (Q1–Q4), week number, and the Sunday–Saturday week range. Supports 4-5-4, 4-4-5, and 5-4-4. Auto-detects 53-week years. Full period table with CSV export. Free, no signup.
Enter a date — retail period, quarter, and week found instantly
NRF rule: retail year starts on the Sunday nearest to January 31. Weeks run Sunday–Saturday. Results update live.
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The most complete free 4-5-4 retail calendar calculator
Find your retail period in 4 steps
LazyTools vs other 4-5-4 calendar tools
| Feature | LazyTools | 454calculator.com | closecore.com | toolio.com |
|---|---|---|---|---|
| Period + Quarter + Week + Year | ✅ All four | ✅ Yes | ✅ Yes | ✅ Yes |
| Sun-Sat week range shown | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes |
| 53-week year detection | ✅ Auto | ✅ Yes | ✅ Yes | ❌ No |
| 4-4-5 and 5-4-4 patterns | ✅ All three | ✅ Yes | ✅ Yes | ❌ 4-5-4 only |
| Full year period table | ✅ With current row | ❌ No | ✅ Yes | ✅ Calendar view |
| Copy period table as CSV | ✅ Yes | ❌ No | ✅ Download | ❌ Paid only |
| Year navigation buttons | ✅ Yes | ❌ No | ❌ No | ✅ Yes |
| No signup required | ✅ Always | ✅ Yes | ✅ Yes | ❌ Account needed |
NRF 4-5-4 retail year start dates — FY2022 to FY2030
| Retail Year | Start Date (Sun) | End Date (Sat) | Weeks | Note |
|---|---|---|---|---|
| FY2022 | Jan 30, 2022 | Jan 28, 2023 | 52 | Standard year |
| FY2023 | Jan 29, 2023 | Jan 27, 2024 | 52 | Standard year |
| FY2024 ⚠ | Jan 28, 2024 | Feb 1, 2025 | 53 | 53-week year |
| FY2025 | Feb 2, 2025 | Jan 31, 2026 | 52 | Standard year |
| FY2026 | Feb 1, 2026 | Jan 30, 2027 | 52 | Standard year |
| FY2027 | Jan 31, 2027 | Jan 29, 2028 | 52 | Standard year |
| FY2028 | Jan 30, 2028 | Jan 26, 2029 | 52 | Standard year |
| FY2029 ⚠ | Jan 27, 2029 | Feb 1, 2030 | 53 | Next 53-week year |
4-5-4 Retail Calendar — Complete Guide
The 4-5-4 retail calendar is the foundation of financial reporting for most major US retailers. Developed in the 1930s and standardised by the National Retail Federation (NRF), it solves a fundamental flaw in the Gregorian calendar for retail reporting: the number of weekends in a calendar month varies from year to year, making year-over-year sales comparisons unreliable.
Why the standard Gregorian calendar fails for retail
Consider November 2024 versus November 2023. The number of Saturdays differs between those months. Since Saturday is typically the highest-traffic shopping day, a retailer comparing November 2024 to November 2023 might see a sales swing that is partly just the result of having a different number of Saturdays — not a real change in retail performance. The 4-5-4 calendar eliminates this by ensuring every comparable period always has exactly the same number of each day of the week.
How the week structure works
The 4-5-4 calendar divides the retail fiscal year into 4 quarters, each containing 3 periods. Within each quarter the periods have 4, 5, and 4 weeks — the 4-5-4 pattern. This gives 13 weeks per quarter and 52 weeks per year totalling 364 days. Every retail week runs Sunday to Saturday. Because every week has exactly 7 days starting on the same day, any two comparable periods in any two fiscal years will have the same count of Sundays, Saturdays, and every other weekday.
The NRF retail year start date rule
The retail year begins on the Sunday nearest to January 31. This places the start between January 28 and February 4. The rule ensures holidays in Q4 (Black Friday, Christmas, post-Christmas returns) stay within the same fiscal year, and that Q1 starts fresh after the holiday season. The specific Sunday is found by taking January 31, finding whether the previous or following Sunday is closer, and choosing that one. When January 31 falls on Wednesday or earlier, the previous Sunday is chosen; when it falls on Thursday or later, the following Sunday is chosen.
53-week years and why they happen
Because 52 retail weeks total only 364 days, the retail calendar loses one day per year compared to the Gregorian calendar (two days in a leap year). After 5 or 6 years this accumulated drift means the retail year would start noticeably later than the intended January 31 anchor. To correct this, a 53rd week is added to Period 12, giving that period 5 weeks (4-5-4) or 6 weeks (4-4-5 or 5-4-4) instead of its normal count. FY2024 (starting January 28, 2024) is a 53-week year. The next is FY2029 (starting January 27, 2029).
4-5-4 vs 4-4-5 vs 5-4-4
All three are 52-week retail calendars using the same weekly structure and the same year-start rule. The only difference is which period within each quarter gets the 5-week allocation. In 4-5-4 it is the middle period (P2, P5, P8, P11). In 4-4-5 it is the last period (P3, P6, P9, P12). In 5-4-4 it is the first period (P1, P4, P7, P10). The NRF uses 4-5-4. Some retailers with different seasonal patterns prefer 4-4-5 because the 5-week period falls at the end of each quarter, giving slightly more time for quarter-end reporting.
4-5-4 retail calendar — 8 questions answered
The 4-5-4 retail calendar divides the fiscal year into 52 weeks across 12 periods and 4 quarters. Each quarter has periods of 4, 5, and 4 weeks. Every comparable period has the same number of weekend days, making year-over-year sales comparisons accurate. The NRF publishes the official calendar used by most major US retailers.
The NRF retail year starts on the Sunday nearest to January 31. FY2025 starts February 2, 2025. FY2026 starts February 1, 2026. FY2027 starts January 31, 2027. FY2029 starts January 27, 2029 (a 53-week year).
A 53-week year happens every 5-6 years to realign the retail calendar with the Gregorian calendar. An extra week is added to Period 12. FY2024 (starting Jan 28, 2024) is a 53-week year. The next is FY2029 (starting Jan 27, 2029).
All three are 52-week retail calendars. The numbers are the weeks per period within each quarter. 4-5-4 (NRF): middle period gets 5 weeks. 4-4-5: last period gets 5 weeks. 5-4-4: first period gets 5 weeks. All use the same Sunday-nearest-Jan-31 year start.
Click Today in the calculator above to instantly see the current retail week number within the period and within the full fiscal year, plus the Sunday-Saturday date range of the current retail week.
NRF retail weeks run Sunday to Saturday so that the two highest-traffic shopping days (Saturday and Sunday) are always grouped within the same retail week, ensuring consistent weekend-day counts for sales reporting.
Click Today in the calculator to find the current retail period (P1-P12), its start and end dates, and its position in the fiscal year. The full period table shows where the current period sits across all 12 periods.
LazyTools 4-5-4 Retail Calendar Calculator is 100% free with no signup. Enter any date, choose 4-5-4, 4-4-5, or 5-4-4, and instantly see the retail fiscal year, period, quarter, and week number. Copy the full period table as CSV.