GPA to 4.0 Scale: Formula, Table & Per-University Conversion
Published June 1, 2026
Converting your GPA to a 4.0 scale depends on the grading system you started with. There's no single official formula that works for every university — this page gives you a simple proportional estimate, plus real per-university letter-grade tables where your institution publishes one.
Generic Estimate Formula
GPA (4.0 scale) = (Your GPA ÷ Your Scale's Max) × 4.0
This is a simple proportional estimate — it is not the official way every university converts GPA. For example: 9 GPA on a 10-point scale → (9 ÷ 10) × 4 = 3.6.
Worked Examples
- 9 GPA on a 10-point scale: (9 ÷ 10) × 4 = 3.6
- 4.7 GPA on a 5.0-point scale: (4.7 ÷ 5.0) × 4 = 3.76 on a 4.0 scale
- 85 out of 100: (85 ÷ 100) × 4 = 3.4
GPA to 4.0 Scale — Quick Reference Table
Estimated 4.0-scale equivalents for a 10-point scale, using the proportional formula:
| GPA (10-point scale) | Estimated GPA (4.0 scale) |
|---|---|
| 10.0 | 4.00 |
| 9.5 | 3.80 |
| 9.0 | 3.60 |
| 8.5 | 3.40 |
| 8.0 | 3.20 |
| 7.5 | 3.00 |
| 7.0 | 2.80 |
| 6.5 | 2.60 |
| 6.0 | 2.40 |
Official Per-University Letter Grade Tables
Some universities publish an exact letter-grade-to-GPA-point table, sometimes with percentage bands too:
| University | Grade | Percentage Band | GPA Points |
|---|---|---|---|
| COMSATS University | A | 85–100% | 3.67 |
| COMSATS University | F | 0–49% | 0.00 |
| IBA Karachi | A | 93–100% | 4.00 |
| IBA Karachi | F | 0–59% | 0.00 |
| PIEAS | A+ | 85–100% | 4.00 |
| PIEAS | F | 0–44% | 0.00 |
NUST, FAST-NUCES, UET Lahore and GIKI use relative or curve-based grading — they publish a letter-to-point table but no fixed percentage band, since grading depends on class performance each semester. The generic estimate above (sections 2–4) is a rough proportional guide; the tables in this section are each university's real, official conversion — keep the two separate.
Frequently Asked Questions
Is GPA-to-4.0 conversion the same everywhere?
No. It depends on the scale you're converting from and your university's specific grading policy. A proportional estimate works as a rough guide, but real conversions vary by institution.
How accurate is the generic formula?
It's a reasonable estimate when your original scale is purely numeric (like a 10-point or 100-point scale), but it doesn't account for institution-specific grade boundaries or relative grading.
Where can I find my university's exact conversion?
Use our University GPA Tool, which has real letter-grade tables for supported universities including COMSATS, IBA Karachi, and PIEAS.
Use our GPA Calculator for a general calculation, or the University GPA Tool for a real per-institution conversion.