What is the inductance value printed on the SMT inductor?

What is the inductance of 2R2, 3R3, 4R710010122021, etc. printed on the SMT inductor? The inductance on the SMT inductor is generally composed of numbers and the letter "R",

A number is composed of three digits (similar to resistance and capacitance), with the first two digits representing the base and the third digit representing the number of zeros. Its unit is generally uH, for example: 100 is 10uh, 101 is 100uh, 220 is 22uh, and 221 is 220uh

If it is composed of numbers and letters, the R in the middle of the number represents the decimal point (dot). For example, 2R2 represents 2.2uh, 3R3 represents 3.3uh, and 4R7 represents 4.7uh.

If there is a letter J after it, K. For L and M, it is generally expressed as a tolerance range of J ± 5% K ± 10% L ± 15% M ± 20%.