  We present the results of a comparison between different methods to estimate
the power of relativistic jets from active galactic nuclei (AGN). We selected a
sample of 32 objects (21 flat-spectrum radio quasars, 7 BL Lacertae Objects, 2
misaligned AGN, and 2 changing-look AGN) from the Very Large Baseline Array
(VLBA) observations at 43 GHz of the Boston University blazar program. We then
calculated the total, radiative, and kinetic jet power from both radio and
high-energy gamma-ray observations, and compare the values. We found an
excellent agreement between the radiative power calculated by using the
Blandford and K\"onigl model with 37 or 43 GHz data, and the values derived
from the high-energy $\gamma-$ray luminosity. The agreement is still acceptable
if 15 GHz data are used, although with a larger dispersion, but it improves if
we use a constant fraction of the $\gamma-$ray luminosity. We found a good
agreement also for the kinetic power calculated with Blandford and K\"onigl
model with 15 GHz data, and the value from the extended radio emission. We also
propose some easy-to-use equations to estimate the jet power.
