Electrical properties and kinematic viscosity of biodiesel

•Measured viscosity of several biodiesels was correlated with electrical properties.•Models were developed to estimate viscosity from relative permittivity and conductivity.•Uncertainty of viscosity estimation from relative permittivity is below 0.4 mm2s−1.•Uncertainty of viscosity estimation from conductivity is below 0.07 mm2s−1.•Biodiesel viscosity and electrical conductivity were related by a power-law scaling.