Backyard Aquaponics
A place to discuss aquaponics

There are two ways to download Convert.

ConvertSetup.exe (780kb) is a full InstallShield installation which sets up directories, icons, and supports uninstallation. This download is recommended for most users.


convert.zip (153kb) is a ZIP file of just the executable. You can unZIP it with your favorite ZIP tool and just run the executable. This download is recommended for experienced users.

Will it tell me how many roods are in a perch?
Or if OB's case, how many perches in a trout?

There are other units in common usage, such as the Imperial system of feet and inches, with areas expressed in acres roods and perches. Other countries also have indigenous units of measurement, most of which now have metric equivalents. In Australia, early measurement was done with a unit known as a 'chain', being the length of a cricket pitch. Feet and inches were also used, so it is beneficial to know some of the standard conversions.

1 chain = 100 links = 4 rods = 20.1168m

1 foot = 12 inches = 0.3048m (exactly)

1 inch = 25.4mm

1 mile = 5280 feet = 80 chains

1 nautical mile = 6076.10 feet = 1 minute of arc at the equator

1 hectare = 10,000m2 = 2.471 acres

1 acre = 4 roods =160 perches = 10 square chains

Given these conversion factors it is possible to convert most other units into the SI system.

Will it tell me how many roods are in a perch?
Or if OB's case, how many perches in a trout?