Hong Life CalculatorsThe official formula
For each course, the BCI (Bureau de coopération interuniversitaire) calculates:
R score (CRC) = (Z × IDGZ + IFGZ + 5) × 5
- Z = (your grade − group average) ÷ group standard deviation – your position in the group.
- IFGZ (indicateur de la force du groupe) – raises or lowers Z depending on how strong the group was in secondary school (ministry exam subjects).
- IDGZ (indicateur de dispersion du groupe) – adjusts Z for how homogeneous the group’s strength is.
Your overall R score combines the course R scores weighted by course units. Failed courses count for only a quarter of their units in the first term (weight 0.25) and half in later terms (0.50).
| Z score | R score with IDGZ 1, IFGZ 0 | R score with IFGZ +0.5 |
|---|---|---|
| -1 | 20 | 22.5 |
| -0.5 | 22.5 | 25 |
| +0 | 25 | 27.5 |
| +0.5 | 27.5 | 30 |
| +1 | 30 | 32.5 |
| +1.5 | 32.5 | 35 |
| +2 | 35 | 37.5 |
Default example: course 1 Z = (85 − 75) ÷ 10 = 1.00 → R = (1 + 5) × 5 = 30.00; the four courses weighted by units give 30.17.
FAQ
How is the R score calculated?
For each course: Z = (grade − group average) ÷ standard deviation, then R = (Z × IDGZ + IFGZ + 5) × 5. The overall R score is the unit-weighted average of your course R scores.
What R score do I get if I am exactly at the group average?
Z = 0, so R = (0 × IDGZ + IFGZ + 5) × 5 = 25 + 5 × IFGZ. In an average-strength group (IFGZ 0) that is 25.
Where do I find IDGZ and IFGZ?
They are computed by the BCI for each group; your college’s registrar or Omnivox report shows your course R scores. Use this tool to understand and project your score.
Sources (checked Nov 10, 2026): BCI, “CRC actuelle – Fondements” (Zcor = Z × IDGZ + IFGZ; CRC = (Zcor + 5) × 5); Collège Jean-de-Brébeuf, “Cote R” leaflet 2026 (definitions of Z, IFGZ, IDGZ); Cégep de Chicoutimi orientation service, “La cote R” (citing BCI: failed courses weighted 0.25 in the first term, 0.50 afterwards). Estimate only, not an official result.