Calculation Methodology
Complete transparency on how SmartCGPA calculates your results.
Step 1: Convert each letter grade to grade points using the selected scale's mapping.
Step 2: Multiply each course's grade points by its credit hours to get quality points.
Step 3: Sum all quality points.
Step 4: Sum all credit hours.
Step 5: Divide total quality points by total credits.
This linear proportional method preserves the relative standing of your grade across different scales. For example, being at 80% of a 10-point scale (8.0) equals 80% of a 4-point scale (3.2).
CBSE Formula (10-point)
Generic Formula
- • CGPA results are rounded to 2 decimal places
- • Intermediate calculations maintain full precision
- • Standard mathematical rounding (0.5 rounds up)
- • Credit hours can include decimals (e.g., 1.5 credits)
4-Point Scale (US)
A = 4.0, A- = 3.7
B+ = 3.3, B = 3.0, B- = 2.7
C+ = 2.3, C = 2.0, C- = 1.7
D = 1.0, F = 0.0
5-Point Scale
A = 5.0, B = 4.0
C = 3.0, D = 2.0
E = 1.0, F = 0.0
10-Point Scale (India)
O = 10, A+ = 9
A = 8, B+ = 7
B = 6, C = 5
D = 4, F = 0
Note: You can customize grade mappings in the calculator to match your institution's specific scale.
Important: These calculations provide estimates for educational planning purposes. Different institutions may use slightly different formulas, rounding rules, or grade mappings. Always verify your official CGPA with your institution's registrar office.