mm/m\text{mm/m}

millimeter per meter

StrainSlopeexact by definition

One millimetre of extension per metre of length, equal to 0.001 strain or 1000 microstrain. Common in civil and geotechnical work where movements are larger than in a machine part.

1 mm/m\text{mm/m} (Strain)0.001 m/m\text{m/m}
1 mm/m\text{mm/m} (Slope)0.001 m/m\text{m/m}
As a unit of slope

One millimetre of fall per metre of run, equal to a 0.1 percent grade. It is how site drainage and floor falls are specified in metric practice — a 1:100 fall is 10 mm/m.

One millimeter per meter in every strain unit

0.001meter per meter (m/m)
0.001inch per inch (in/in)
1,000microstrain (µm/m)
1millimeter per meter (mm/m)this unit
1mil per inch (mil/in)
0.1percent strain (%)

One millimeter per meter in every slope unit

0.001meter per meter (m/m)
0.1percent grade (%)
1millimeter per meter (mm/m)this unit
1per mille ()
0.001foot per foot (ft/ft)
0.012inch per foot (in/ft)