Päivämäärät roomalaisin numeroin muuntolaskin.
| Roomalainen numero | Desimaaliluku |
|---|---|
| I | 1 |
| V | 5 |
| X | 10 |
| L | 50 |
| C | 100 |
| D | 500 |
| M | 1000 |
| Vuosi | Roomalainen numero |
|---|---|
| 1000 | M |
| 1100 | MC |
| 1200 | Oma asiakaskeskus |
| 1300 | Oma asiakaskeskus |
| 1400 | MCD |
| 1500 | MD |
| 1600 | MDC |
| 1700 | MDCC |
| 1800 | MDCCC |
| 1900 | MCM |
| 1990 | MCMXC |
| 1991 | MCMXCI |
| 1992 | MCMXCII |
| 1993 | MCMXCIII |
| 1994 | MCMXCIV |
| 1995 | MCMXCV |
| 1996 | MCMXCVI |
| 1997 | MCMXCVII |
| 1998 | MCMXCVIII |
| 1999 | MCMXCIX |
| 2000 | MM |
| 2001 | MMI |
| 2002 | MMII |
| 2003 | MMIII |
| 2004 | MMIV |
| 2005 | MMV |
| 2006 | MMVI |
| 2007 | MMVII |
| 2008 | MMVIII |
| 2009 | MMIX |
| 2010 | MMX |
| 2011 | MMXI |
| 2012 | MMXII |
| 2013 | MMXIII |
| 2014 | MMXIV |
| 2015 | MMXV |
| 2016 | MMXVI |
| 2017 | MMXVII |
| 2018 | MMXVIII |
| 2019 | MMXIX |
| 2020 | MMXX |
| 2021 | MMXXI |
| 2022 | MMXXII |
| 2023 | MMXXIII |
| 2024 | MMXXIV |
| 2025 | MMXXV |