40 mM to mol/L

40 mM = 0.04 mol/L

mMmol/L
34 mM0.034
36 mM0.036
38 mM0.038
400.04
42 mM0.042
44 mM0.044
46 mM0.046

40 mM = 0.04 mol/L

Formula

1 mol/L = 1,000 mM (millimolar) · 1 mM = 0.001 mol/L