Fortnight Calculator

1. Enter the number of fortnights you want to convert.
2. Read the result in days, weeks, hours and months.
3. Use decimals, such as 0.5, for half a fortnight.

A fortnight is a unit of time equal to 14 days, or exactly two weeks. The word comes from the Old English "feowertyne niht", meaning fourteen nights. It is widely used in the United Kingdom, Ireland, Australia and New Zealand, especially for pay cycles, rent and scheduling. A fortnight is 336 hours, 20,160 minutes or about 0.46 of an average month.

Note that a fortnight is not the same as the video game Fortnite. The time unit is spelled with an "gh" and always means 14 days.

1. Multiply the number of fortnights by 14 to get days.
2. Multiply by 2 to get weeks, by 336 to get hours.
3. Divide the days by 30.44 for an approximate number of months.

Because a fortnight is a fixed 14 days, the conversions are exact for days, weeks, hours and minutes. Only the month figure is approximate, since calendar months vary in length.

Suppose you are paid every fortnight and want to know how long 26 pay periods cover. Multiply 26 by 14 to get 364 days, and by 2 to get 52 weeks. That is why 26 fortnights is often used as a working year: it is 364 days, just one day short of a full 365-day year.

A fortnight sits between a week and a month. It is twice as long as a week and a little under half of an average month, which is why it suits pay and rent cycles that fall more often than monthly but less often than weekly. Seeing the units side by side makes the relationships clear and helps you convert at a glance without reaching for the calculator.

Because the fortnight is a fixed span, these relationships never change, unlike the month, which varies from 28 to 31 days across the calendar.

Whole vs Partial Fortnights

Decimals work, so half a fortnight is 7 days and a quarter is 3.5 days. The tool multiplies exactly whatever you enter.

Days per Month Assumption

The month figure uses the average calendar month of 30.44 days, so it is an estimate. A fortnight is closer to half a month than exactly half.

Fortnight vs Biweekly

Fortnightly always means every 14 days. Biweekly is ambiguous in some regions and can mean either twice a week or every two weeks, so fortnightly is the clearer term.

Fortnightly Pay and Budgets

Many employers in the UK and Australia pay every fortnight. Converting fortnights to days or weeks helps line up bills and budgets with pay dates.

Rent and Subscriptions

Some rent and membership cycles run fortnightly, so knowing the exact day count avoids miscounting a period.

Study and Trivia

Answering how many days or weeks are in a fortnight, or how many fortnights fit in a year, which is about 26.09.

1. Confusing Fortnight with Fortnite

Fortnight is a 14-day time unit; Fortnite is a game. They are spelled differently and mean different things.

2. Assuming a Fortnight Is Half a Month

A fortnight is 14 days, but an average month is about 30.44 days, so a fortnight is slightly less than half a month.

3. Mixing Up Biweekly

Biweekly can mean twice a week or every two weeks. Fortnightly always means every 14 days.

4. Forgetting 26 Fortnights Is 364 Days

A year holds just over 26 fortnights, not exactly 26, because 26 fortnights is 364 days, one short of a year.

The day, week, hour and minute conversions are exact because a fortnight is a fixed 14 days. The month figure is an average-based estimate.

A fortnight is 14 days, or exactly two weeks. It also equals 336 hours or 20,160 minutes.

There are 14 days in a fortnight. The word means fourteen nights, from the Old English feowertyne niht.

Yes. A fortnight is exactly two weeks, or 14 days. The two terms are interchangeable.

A year holds about 26.09 fortnights. Exactly 26 fortnights is 364 days, one day short of a 365-day year.

A fortnight is 336 hours, found by multiplying 14 days by 24 hours.

Not quite. A fortnight is 14 days, while an average calendar month is about 30.44 days, so a fortnight is a little under half a month.

Fortnightly always means every 14 days. Biweekly is ambiguous and can mean twice a week or every two weeks, so fortnightly is clearer.

No. A fortnight is a 14-day period of time, while Fortnite is a video game. They are spelled differently.

No. The calculator runs entirely in your browser and nothing you enter is stored or sent anywhere.

• Definition of fortnight (Wikipedia).
• Fortnight in the dictionary (Merriam-Webster).
• Units of time reference (Wikipedia).