At My Koopvaardij and on your Uniform Pension Overview (UPO), you will find your personal pension amounts. You can log in using your DigiD or eIDAS.
Go to mijnpensioenoverzicht.nl (Dutch only) for a total overview of your state pension and built-up (net) pensions in the Netherlands.
The pension comparison tool shows you the differences between two pension schemes. This may be useful, for instance, in the case of a pension transfer. This is transferring the pension that you have built up at other employers.