How to calculate the age of ID card with formula

1, ID number 7 to 13, representing the date of birth. For example, 19950207 in the title was born on February 7, 2005.

2. Citizenship number is a characteristic combination code, which consists of 17 bit ontology code and check code. The order from left to right is: six-digit address code, eight-digit date of birth code, three-digit serial code and one-digit check code.

Extended data:

I. Structure and form

The structure of 1. number, the citizenship number is a characteristic combination code, which consists of 17 digit digital ontology code and check code. The order from left to right is: six-digit address code, eight-digit date of birth code, three-digit serial code and one-digit check code.

2. The birth date code indicating the date of birth of the coded object is implemented according to GB/T7408, and there is no separator between the date of birth codes.

3. Serial number, that is, the serial number compiled for people born in the same year, the same month and the same day in the area identified by the same address code. Odd numbers of serial codes are assigned to men and even numbers to women.

4. The check code is calculated according to the previous 17 bit code and the check code of ISO 7064: 1983. MOD 1 1-2。

References:

Resident ID Number-Baidu Encyclopedia