Are these online iq tests accurate?

Not rlly bro js do maths and see how good u can get in maths and limitations u face naturally and how hard it is to solve Olympiad type problems for u naturally and for other intelligence how easily u can arrive to complex concepts and models individually on Ur own with minimal prior knowledge on it and support that's a good indicator for intelligence I would say

Honestly the most accurate way is looking at iq percentiles. You can estimate it by looking at how many people in your school year are smarter than you then making a percentile and transalate to an iq