Check Digit Calculator
Just enter your RIV number to find out the check digit...
Please note: this page does not work with the new ZZ709 prefix - instead please enter 99709 until the page is fixed.
Enter RIV number: | |||||||||||||||||||||||
Multiplier: | 2 | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 2 | ||||||||||||
Digit × Multiplier: | |||||||||||||||||||||||
Unique Digits: | |||||||||||||||||||||||
Round up to nearest 10: | |||||||||||||||||||||||
Check Digit: |