Meter, millimeter, and centimeter.
Length in metric units is usually in meters, centimeters, millimeters, and kilometers but there are other possible metric units of length. Volume in metric units is usually in liters, cubic centimeters or cubic meters but there are other possible metric units of volume. Mass in metric units is usually in kilograms, grams, or metric tons - although there are other possible metric units of mass.
English (or imperial) units are things like:- Pint/gallon for volume Inch/foot for length Ounce/pound for weight (there are more) Metric units are:- litre for volume metre for length kilogram for weight
It doesn't make sense to convert between units of length and units of mass.
Probably that refers to expressing length in standard (metric) units, like meters, millimeters, and kilometers, instead of some non-standard (non-metric) unit like feet, or light-years.
Meters are a metric measurement for length and a Kilogram is a metric measurement of mass, You can not convert between these units.
Metre, centimetre and kilometre.
Meter. . . . . Length Kilogram . . . Mass Second. . . . Time
metre - length/distance litre-volume kilogram-mass
Length is measured in metres.
Metre is the SI, or metric, base unit of length.
The basic lengths of the metric system ismilli,centi,gram,litre,metre,etc.
Length
Length in metric units is usually in meters, centimeters, millimeters, and kilometers but there are other possible metric units of length. Volume in metric units is usually in liters, cubic centimeters or cubic meters but there are other possible metric units of volume. Mass in metric units is usually in kilograms, grams, or metric tons - although there are other possible metric units of mass.
gab
length / distance
About a meter.
It's the meter.