Convert Months to Anomalistic Months
Convert Months (mo) to Anomalistic Months (anom.mo) instantly and accurately.
Conversion Formula
anom.mo = mo × 1.104604279
About Months
A mean Gregorian calendar month = 365.2425 ÷ 12 = 30.436875 days = 2,629,746 s exactly (averaged over the 400-year cycle with exactly 97 leap years). Individual months have 28-31 days. Loan schedules, subscriptions, and mobile billing reference 'per month', requiring explicit agreement on meaning. ISO 8601 uses 'P1M'. 1 mo = 30.436875 d = 2,629,746 s.
About Anomalistic Months
The anomalistic month = interval between successive Moon perigees = 27.5546 days = 2,380,713.2 s. Slightly longer than the sidereal month because the Moon's perigee precesses, completing one revolution in ~8.85 years. Governs 'supermoons': a full moon at perigee appears ~14% wider and 30% brighter. Tidal forces at perigee are ~30% stronger than at apogee. 1 anom.mo = 27.5546 d.
Quick Reference Table
| Months (mo) | Anomalistic Months (anom.mo) |
|---|---|
| 1 mo | 1.1046 anom.mo |
| 2 mo | 2.20921 anom.mo |
| 5 mo | 5.52302 anom.mo |
| 10 mo | 11.046 anom.mo |
| 25 mo | 27.6151 anom.mo |
| 50 mo | 55.2302 anom.mo |
| 100 mo | 110.46 anom.mo |