Months to Picoseconds (mo to ps)

1 month equals 2.629746×10¹⁸ picoseconds exactly.

1 month = 2.629746×10¹⁸ picoseconds

How to convert months to picoseconds

To convert months to picoseconds, multiply the number of months by 2.629746×10¹⁸. This factor is exact. To go the other way, multiply picoseconds by 3.802648621×10⁻¹⁹ (rounded).

picoseconds = months × 2.629746×10¹⁸

Example: 10 months = 2.629746×10¹⁹ picoseconds.

Months and years are not constant. This site uses the average Gregorian year of 365.2425 days, so one 'year' converts to 365.2425 days, not 365; use 'common year' for exactly 365 days.

About these units

Month (mo)

CalendarCurrent unit

One twelfth of an average Gregorian year: 30.436875 days. Calendar months actually range from 28 to 31 days.

Month and Moon are cognates, and the unit began as the Moon's cycle of phases, about 29.53 days from one new moon to the next. The trouble is that 12 of these fall short of a solar year, so calendars have had to choose. The Islamic calendar stays purely lunar, so its year is about 11 days shorter than the solar year, while the Hebrew calendar is lunisolar, using a 19-year cycle with an extra month. Even the start of a lunar month is still debated between observing the crescent and calculating it.

Gregorian months are a compromise that drifted far from the Moon. Their lengths run from 28 to 31 days, and this site uses their mean of 30.436875 days, one twelfth of the average year. The names also keep Roman history: September to December preserve the Latin numerals for seven to ten, since they were originally the seventh to tenth months, and Quintilis and Sextilis were renamed for Julius Caesar and Augustus. When a contract says month, check whether it means a calendar month or thirty days.

1 month = 2,629,746 seconds (exactly).

Sources: Wikipedia: Month; Wikipedia: Lunar calendar

Picosecond (ps)

ScientificCurrent unit

One trillionth of a second. Used for very fast electronics.

Pico comes from SI prefix naming and stands for 10 to the power of minus 12, so a picosecond is one trillionth of a second. The BIPM and NIST prefix tables both list it with the symbol p, and the unit is written ps. It is an exact decimal fraction with no historical variation, which is why the factor used here carries no uncertainty.

Picoseconds matter where signals and molecules move too fast for milliseconds or nanoseconds to be useful. Light in a vacuum travels about 0.30 mm in one picosecond, so a millimetre takes roughly 3.3 ps. A 1 THz electromagnetic wave has a cycle time of 1.0 ps, the unit interval of a 10 Gbit/s serial link is 100 ps, and a 3.0 GHz processor cycle lasts about 330 ps. Streak cameras can resolve events on single-digit picosecond timescales, and Wikipedia lists the lifetime of a hydronium ion in water as about 1 ps. A picosecond is one thousandth of a nanosecond.

1 picosecond = 1×10⁻¹² seconds (exactly).

Sources: Wikipedia: Picosecond; BIPM: SI prefixes; NIST: Metric (SI) prefixes

Related conversions

See all time units.