  We present a calibration of the massive star formation rate vs. [CII]
luminosity relation based on a sample of nearby, late-type galaxies observed
with ISO-LWS and imaged in the Halpha+[NII] line. The relation holds for far-IR
luminosities 10^8 < L_{FIR} < 10^{10.5} L (solar units). The derived star
formation rates have an uncertainty of about a factor of 10. Part of this
uncertainty is due to the different mix of contributions to the [CII] emission
from the different components of the interstellar medium in individual
galaxies, as discussed in an appendix.
