judging by (something)

judging by (something)

Based on something; taking into account and considering something. Judging by his expression, I reckon the boss was as surprised as the rest of us by the news. It looks like the previous tenants didn't even know there was a lawnmower here, judging by the state of the front yard.
See also: by, judge
Farlex Dictionary of Idioms.

judging by something

 and judging from something
to make a decision or judgment based on something. Judging by the amount of food eaten, everyone must have been very hungry. Judging from the mess that's left, the party must have been a good one.
See also: by, judge
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • all for the best
  • a/the feel of (something)
  • (I) wouldn't (do something) if I were you
  • a straw will show which way the wind blows
  • a crack at (someone or something)
  • all right
  • (you) wanna make something of it?
  • a thing of the past
  • a slew of (something)
  • a bird in the hand