How many weeks in 1 tropical year? The answer is 52.177456092923. We assume you are converting between week and tropical year. You can view more details on each measurement unit: weeks or tropical year The SI base unit for time is the second. 1 second is equal to 1.6534391534392E-6 weeks, or 3.1688765172731E-8 tropical year. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between weeks and years. Type in your own numbers in the form to convert the units!
You may also want to find out how many days are between two dates on the calendar. Use the date calculatorto get your age in days or measure the duration of an event.
1 weeks to tropical year = 0.01917 tropical year
10 weeks to tropical year = 0.19165 tropical year
20 weeks to tropical year = 0.38331 tropical year
30 weeks to tropical year = 0.57496 tropical year
40 weeks to tropical year = 0.76661 tropical year
50 weeks to tropical year = 0.95827 tropical year
100 weeks to tropical year = 1.91654 tropical year
200 weeks to tropical year = 3.83307 tropical year
You can do the reverse unit conversion from tropical year to weeks, or enter any two units below:
A week is a unit of time longer than a day and shorter than a month. In most modern calendars, including the Gregorian calendar, the week is a period of seven days, making it the longest conventionally used time unit that contains a fixed number of days. Although having no direct astronomical basis, it is widely used as a unit of time.
The mean tropical year is defined as the period of time for the mean ecliptic longitude of the Sun to increase by 360 degrees. Since the Sun's ecliptic longitude is measured with respect to the equinox, the tropical year comprises a complete cycle of the seasons; because of the biological and socio-economic importance of the seasons, the tropical year is the basis of most calendars.
The International Union of Pure and Applied Chemistry and the International Union of Geological Sciences have jointly recommended using defining the annus, with symbol a, as the length of the tropical year in the year 2000:
a = 31556925.445 seconds (approximately 365.24219265 ephemeris days)
We default to using the Gregorian year on this site, but you can select a specific type of year by entering the full name like "tropical year".
ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 70 kg, 150 lbs, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!