CGPA & Percentage Calculators
Convert CGPA, SGPA and marks to percentage using each board's official formula.
Updated June 2026 · Free · No sign-up
Indian schools and universities report results on different scales — CBSE's 10-point CGPA, university SGPA/CGPA systems, and percentage marks — and each has its own official conversion formula. Applying the wrong one (a common mistake) gives a percentage that won't match your transcript, which matters for job and higher-study applications.
These calculators use the correct, board-specific formula for each: CBSE (CGPA × 9.5), VTU and AKTU ((CGPA × 10) − 7.5), Anna University ((CGPA − 0.5) × 10), and credit-weighted SGPA-to-CGPA. Use the one that matches your institution, plus the general GPA and grade tools for coursework planning.
All CGPA & Percentage Calculators
CGPA to % Calculator
Convert CGPA to percentage using the correct formula for your board / university — CBSE 10th (×9.5), Anna Univ (CGPA×10), VTU (scheme-specific), JNTU, Mumbai Univ, SPPU, and generic 10-point scale. Each board has a different formula.
% to CGPA Calculator
Convert percentage to CGPA using the reverse formula for your board / university — CBSE 10th (÷9.5), Anna Univ, VTU, JNTU, Mumbai Univ, SPPU. Each board uses a different conversion — this calc picks the right one.
SGPA to CGPA Calculator
Calculate cumulative CGPA across multiple semesters from individual SGPAs. Supports credit-weighted aggregation (semesters can have different credit weights). Used by engineering / B.Tech / M.Tech students at every Indian university.
CBSE Grade Calculator
Convert CBSE Class 10 / 12 board exam marks to the 9-point grade scale (A1 / A2 / B1 / B2 / C1 / C2 / D / E1 / E2). Used for the CBSE result format that shows letter grades alongside percentage marks.
VTU CGPA Calculator
Calculate Cumulative Grade Point Average for VTU (Visvesvaraya Technological University, Karnataka) using credit-weighted multi-semester aggregation. Includes per-semester SGPA + final CGPA-to-percentage via VTU's scheme-aware formula (CGPA×10 for 2021/2022 schemes; (CGPA×10)−7.5 for 2015-2018 schemes).
AKTU CGPA Calculator
Calculate CGPA for AKTU (Dr. APJ Abdul Kalam Technical University, UP) — formerly UPTU — with credit-weighted semester aggregation and the AKTU (CGPA × 10) - 7.5 percentage conversion formula.
Anna Univ CGPA Calculator
Calculate CGPA for Anna University (Tamil Nadu engineering) using credit-weighted semester aggregation and the Anna Univ (CGPA - 0.5) × 10 percentage conversion formula.
GPA Calculator
Calculate your GPA by entering grades and credit hours. Supports 4.0 scale.
Grade Calculator
Calculate your final course grade based on assignments, exams, and their weights.
Frequently asked questions
How do I convert CGPA to percentage?
It depends on your board. CBSE uses percentage = CGPA × 9.5. VTU and AKTU use (CGPA × 10) − 7.5. Anna University uses (CGPA − 0.5) × 10. Always use your own institution's published formula — use the matching calculator above.
What is the CBSE CGPA to percentage formula?
CBSE's official formula is percentage = CGPA × 9.5. For example, a CGPA of 8.0 converts to 76%. The same ×9.5 multiplier applies to a single subject's grade point to get that subject's indicative percentage.
How is CGPA calculated from SGPA?
CGPA is the credit-weighted average of your semester SGPAs: CGPA = Σ(SGPA × semester credits) / Σ credits. A heavier-credit semester pulls the CGPA more than a lighter one. The SGPA-to-CGPA calculator does this for any number of semesters.
Is GPA the same as CGPA?
GPA usually refers to a single term's grade point average (often on a 4.0 scale), while CGPA is the cumulative average across all completed terms (often on a 10-point scale in India). The conversion scale and formula differ, so use the right tool.
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