Omrekenen van gewicht
Mass and weight conversion online. instant online units and measurements conversion:
for metric conversion and other systems. many units supported from common
to very exotic.
http://www.convert-me.com/en/convert/weight
Omrekenen van lengte
Distance and length conversion online. instant online units and measurements conversion:
for metric conversion and other systems. many units supported from common
to very exotic.
http://www.convert-me.com/en/convert/length
Romeinse tabellen
Roman weights and measures including length surface area weight money currency and capacity
http://romantables.8m.com/