What is this dataset?
It is the conversion chart OPM publishes in its CSRS/FERS Handbook for full-time employees: hours of unused sick leave down the side, with the months and days of credit they equal. Hours beyond a full year are reduced by 2,087 for each year first, and the remainder is read from the chart.
Look up your hours
835 hours: 4 months, 24 days of service credit
Source: OPM Retirement Facts 8. opm.gov, retrieved 2026-10-11, effective 2026-10-11. For an 8-hour day; OPM says to use the number closest to your hours. 2,087 hours equal one year.
| Days | 0 mo | 1 mo | 2 mo | 3 mo | 4 mo | 5 mo | 6 mo | 7 mo | 8 mo | 9 mo | 10 mo | 11 mo |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 0 | 174 | 348 | 522 | 696 | 870 | 1,044 | 1,217 | 1,391 | 1,565 | 1,739 | 1,913 |
| 1 | 6 | 180 | 354 | 528 | 702 | 875 | 1,049 | 1,223 | 1,397 | 1,571 | 1,745 | 1,919 |
| 2 | 12 | 186 | 360 | 533 | 707 | 881 | 1,055 | 1,229 | 1,403 | 1,577 | 1,751 | 1,925 |
| 3 | 17 | 191 | 365 | 539 | 713 | 887 | 1,061 | 1,235 | 1,409 | 1,583 | 1,757 | 1,931 |
| 4 | 23 | 197 | 371 | 545 | 719 | 893 | 1,067 | 1,241 | 1,415 | 1,589 | 1,762 | 1,936 |
| 5 | 29 | 203 | 377 | 551 | 725 | 899 | 1,073 | 1,246 | 1,420 | 1,594 | 1,768 | 1,942 |
| 6 | 35 | 209 | 383 | 557 | 731 | 904 | 1,078 | 1,252 | 1,426 | 1,600 | 1,774 | 1,948 |
| 7 | 41 | 215 | 388 | 562 | 736 | 910 | 1,084 | 1,258 | 1,432 | 1,606 | 1,780 | 1,954 |
| 8 | 46 | 220 | 394 | 568 | 742 | 916 | 1,090 | 1,264 | 1,438 | 1,612 | 1,786 | 1,960 |
| 9 | 52 | 226 | 400 | 574 | 748 | 922 | 1,096 | 1,270 | 1,444 | 1,618 | 1,791 | 1,965 |
| 10 | 58 | 232 | 406 | 580 | 754 | 928 | 1,102 | 1,275 | 1,449 | 1,623 | 1,797 | 1,971 |
| 11 | 64 | 238 | 412 | 586 | 760 | 933 | 1,107 | 1,281 | 1,455 | 1,629 | 1,803 | 1,977 |
| 12 | 70 | 244 | 417 | 591 | 765 | 939 | 1,113 | 1,287 | 1,461 | 1,635 | 1,809 | 1,983 |
| 13 | 75 | 249 | 423 | 597 | 771 | 945 | 1,119 | 1,293 | 1,467 | 1,641 | 1,815 | 1,989 |
| 14 | 81 | 255 | 429 | 603 | 777 | 951 | 1,125 | 1,299 | 1,473 | 1,646 | 1,820 | 1,994 |
| 15 | 87 | 261 | 435 | 609 | 783 | 957 | 1,131 | 1,304 | 1,478 | 1,652 | 1,826 | 2,000 |
| 16 | 93 | 267 | 441 | 615 | 789 | 962 | 1,136 | 1,310 | 1,484 | 1,658 | 1,832 | 2,006 |
| 17 | 99 | 273 | 446 | 620 | 794 | 968 | 1,142 | 1,316 | 1,490 | 1,664 | 1,838 | 2,012 |
| 18 | 104 | 278 | 452 | 626 | 800 | 974 | 1,148 | 1,322 | 1,496 | 1,670 | 1,844 | 2,018 |
| 19 | 110 | 284 | 458 | 632 | 806 | 980 | 1,154 | 1,328 | 1,502 | 1,675 | 1,849 | 2,023 |
| 20 | 116 | 290 | 464 | 638 | 812 | 986 | 1,160 | 1,333 | 1,507 | 1,681 | 1,855 | 2,029 |
| 21 | 122 | 296 | 470 | 644 | 817 | 991 | 1,165 | 1,339 | 1,513 | 1,687 | 1,861 | 2,035 |
| 22 | 128 | 302 | 475 | 649 | 823 | 997 | 1,171 | 1,345 | 1,519 | 1,693 | 1,867 | 2,041 |
| 23 | 133 | 307 | 481 | 655 | 829 | 1,003 | 1,177 | 1,351 | 1,525 | 1,699 | 1,873 | 2,047 |
| 24 | 139 | 313 | 487 | 661 | 835 | 1,009 | 1,183 | 1,357 | 1,531 | 1,704 | 1,878 | 2,052 |
| 25 | 146 | 319 | 493 | 667 | 841 | 1,015 | 1,189 | 1,362 | 1,536 | 1,710 | 1,884 | 2,058 |
| 26 | 151 | 325 | 499 | 673 | 846 | 1,020 | 1,194 | 1,368 | 1,542 | 1,716 | 1,890 | 2,064 |
| 27 | 157 | 331 | 504 | 678 | 852 | 1,026 | 1,200 | 1,374 | 1,548 | 1,722 | 1,896 | 2,070 |
| 28 | 162 | 336 | 510 | 684 | 858 | 1,032 | 1,206 | 1,380 | 1,554 | 1,728 | 1,902 | 2,075 |
| 29 | 168 | 342 | 516 | 690 | 864 | 1,038 | 1,212 | 1,386 | 1,560 | 1,733 | 1,907 | 2,081 |
How do I read the chart?
- 01
Take your hours
Use the sick leave balance on your final Leave and Earnings Statement.
- 02
Remove full years
Subtract 2,087 hours for each full year and note the years.
- 03
Find the remainder
Look it up on the chart to read months and days.
- 04
Add it to your service
OPM then counts the combined total in full years and months.
What rule sets sick leave credit?
Unused sick leave at retirement is added to your creditable service when OPM computes your annuity, but it never counts toward the service needed for eligibility. It does not apply to deferred retirements. Because days left over after full months are dropped from the final total, a small amount of sick leave can be enough to complete a month. Part-time schedules use a prorated conversion.
Where to go next
Convert your own balance with the sick leave conversion calculator, then add it to the FERS pension estimator. The leave guide covers how sick and annual leave differ at retirement.
Not sure whether your balance completes another month?
FFEBA is an education organization. If you want someone to look at your own numbers, we can match you with a Federal Retirement Consultant (FRCĀ®), a professional trained on federal benefits. The FRC designation is listed with FINRA. The first review is free, nothing is booked until you choose a time, and you are never obligated to work with anyone we introduce. Get matched with an FRC.
Questions about this data
How do you convert sick leave to retirement credit?
Find your hours on OPM's chart, which converts them to years, months and days based on a 2,087-hour year. Add that time to your actual service. OPM counts the total in full years and months and drops leftover days.
How many hours of sick leave make a year?
2,087 hours equal one year of service credit, under OPM's conversion based on the federal 2,087-hour work year.
Does FERS count 100 percent of sick leave?
FERS retirees receive sick leave credit in their annuity computation.
Can sick leave help me reach my MRA or 30 years?
No. Sick leave is added only after OPM confirms you are eligible, when it computes the annuity amount.
Reviewed by the FFEBA education team. Last reviewed October 2026.
Sources
- U.S. Office of Personnel Management, CSRS/FERS Handbook (unused sick leave credit and conversion chart), retrieved 2026-07-05
Every government figure on this page carries its source and retrieval date. Worked examples are educational estimates on the assumptions shown, not a projection of any person's benefit. FFEBA is an education organization, not a financial advisor.



