The C factor is used to calculate your monthly reference salary (= basic salary in CHF x C factor).
You can calculate your C factor here : https://cfactorcalculator.web.cern.ch/#en
More details can be found in Annex A of the CERN Pension Fund Rules and Regulations.
You can find it on the “C Factor calculator” webpage or in Annex A of the CERN Pension Fund Rules and Regulations
As a member of the CERN personnel, your reference salary can be found on your payslip under “CONTRIB. PENSION”.
As a member of the ESO personnel, you can calculate your reference salary using the data provided on your payslip under “Pension CERN” (basic salary in CHF x C factor).
As an employed member of the CERN/ESO personnel, the reference salary is: basic salary for 40 hours per week multiplied by the applicable C factor.
If you are a CERN fellow (junior or senior), the reference salary is: 4709 CHF multiplied by the applicable C factor, which is 1.3322.
If you are a CERN GRAD, the reference salary is: 4251 CHF multiplied by the applicable C factor, which is 1.3322.