judging from; considering
Judging from evidence or facts, used to express a conclusion or assessment.
This pattern means 'judging from' or 'considering (the evidence)'. It is used when you make an inference or evaluation based on some observable fact or situation. The noun is typically something concrete like a person's appearance, a situation, or data. For example, if someone looks tired, you might say '顔色からすると、疲れているみたいだ。' The pattern often appears in sentences where the speaker gives their opinion or guess based on the evidence.
からすると is fairly neutral in register and can be used in both speaking and writing, though in casual conversation you might hear からすると or から見ると. It is not as formal as からして, but it is not rude either. It is a standard N2 pattern used in news, essays, and daily speech.