Measurement and units
Convert units of length, weight, and volume — millimeters, centimeters, meters, grams and kilograms, milliliters and liters. Read a ruler and compare mixed units.
Available exercises
Length units — cm and m
Convert between centimeters and meters.
Comparing measurements
Compare measurements in different units.
Reading a ruler
Read the length of an object from a ruler.
Volume units — ml and l
Convert between milliliters and liters.
Weight units — g and kg
Convert between grams and kilograms.