Convert Shakes to Months
Convert Shakes (sh) to Months (mo) instantly and accurately.
Conversion Formula
mo = sh × 3.802648621e-15
About Shakes
A shake = exactly 10 ns (10⁻⁸ s) - the informal unit for fission prompt-neutron generation time, coined at Los Alamos during the Manhattan Project (1943-1945). A prompt-neutron generation in a supercritical core takes ~1-10 shakes; a full explosive chain reaction unfolds over ~50-100 shakes. The name alludes to 'two shakes of a lamb's tail'. Still used in reactor physics and weapons-design calculations. 1 shake = 10 ns.
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.
Quick Reference Table
| Shakes (sh) | Months (mo) |
|---|---|
| 1 sh | 3.803 × 10-15 mo |
| 2 sh | 7.605 × 10-15 mo |
| 5 sh | 1.901 × 10-14 mo |
| 10 sh | 3.803 × 10-14 mo |
| 25 sh | 9.507 × 10-14 mo |
| 50 sh | 1.901 × 10-13 mo |
| 100 sh | 3.803 × 10-13 mo |