Calibrate vs Validate - What's the difference?

As verbs the difference between calibrate and validate

is that calibrate is to check or adjust by comparison with a standard while validate is to render valid.

(Calibration)

(calibrat)

To check or adjust by comparison with a standard.

To mark the scale of a measuring instrument.

To measure the caliber of a tube or gun.

* *

(validat)

To render valid.

To check or prove the validity of; verify.

* disprove * invalidate