GPA Scale Converter

Convert between percentage, letter grades, 4.0, 4.3, 5.0, and international GPA scales instantly.

4.0 GPA Scale

Enter a value to convert.

lockYour grades never leave your browser. Calculations happen entirely on your device.

What it does

Bidirectional conversion

Convert in any direction between Percentage, Letter Grade, 4.0, 4.3, 5.0 Weighted, and India 10.0 CGPA scales.

Full reference table

Every conversion shows the complete mapping table so you can see the full picture, not just your single grade.

Conversion notes

Each result includes a note about accuracy and any important caveats for the specific conversion pair.

Privacy-first

All conversions happen in your browser. No data is sent to any server.

How to use GPA Scale Converter

  1. 1
    Select your source scale

    Choose what you're converting from: Percentage, Letter Grade, 4.0 GPA, 4.3 GPA, 5.0 GPA (Weighted), India 10.0 CGPA, or raw Percentage.

  2. 2
    Select your target scale

    Choose what you want to convert to. All supported scales are available in the target dropdown.

  3. 3
    Enter your grade value

    Type the grade to convert. The input format adjusts to match your source scale (e.g., percentage accepts 0–100; letter grade shows a dropdown).

  4. 4
    Review the converted value and reference table

    The converted grade appears as the main result. The full reference table below shows how every grade on your source scale maps to the target scale.

Why GPA conversions are never exact — and what to do about it

GPA conversion is one of the most misunderstood topics in international academic admissions. Students often assume there is a precise mathematical formula — that a 7.5/10 Indian CGPA exactly equals a 3.5/4.0 US GPA. There isn't. The reason is that grading standards vary dramatically across countries, universities, and even departments within the same university.

In India, for instance, a 70% score at IIT Bombay represents a significantly higher absolute achievement than a 70% at a less selective institution — yet both might map to the same GPA on a simple percentage-to-GPA conversion table. US graduate schools are aware of this and often use institution-specific conversion norms or evaluate transcripts on a case-by-case basis rather than applying a formula.

For practical purposes, use conversion tools to get a reasonable approximation and always state the original scale alongside the converted value. When applying to graduate programs, provide your transcript with your original GPA on its native scale and let the admissions committee apply their conversion. Many US universities specify their own conversion formula in the application instructions — follow that rather than a generic converter.

For Canadian universities using the 4.3 scale: if you're comparing your GPA against a US benchmark, subtract 0.1–0.15 points as a rough adjustment. A 3.8 on a 4.3 scale is roughly equivalent to a 3.65 on a 4.0 scale.

Frequently Asked Questions

How do I convert a 3.5 GPA to a percentage?

A 3.5 GPA on the 4.0 scale corresponds to approximately 90–91% using the standard US grade mapping (B+ range). The exact percentage depends on your institution's conversion table. Select "4.0 GPA → Percentage" in this converter to see the full mapping table.

How do I convert India CGPA to a 4.0 GPA?

There is no universal formula, but a widely used approximation is: first convert CGPA to percentage (Percentage = CGPA × 9.5 per CBSE guidelines), then map the percentage to the 4.0 scale (90%+ = 4.0, 80–89% = 3.0–3.7, etc.). Select "India 10.0 CGPA → 4.0 GPA" in this converter for the full table.

Are GPA conversions exact?

No — GPA conversions are approximate and vary by institution. There is no universally agreed-upon formula for converting between systems like India's 10.0 CGPA and the US 4.0 GPA. The conversions in this tool follow widely accepted approximations, but graduate schools, scholarship committees, and employers may use different conversion tables. Always check with the receiving institution for their specific conversion policy.

What is the difference between a 4.0 and 4.3 GPA scale?

The only difference is how A+ grades are treated. On the 4.0 scale, A+ = 4.0 (same as A). On the 4.3 scale, A+ = 4.3, giving an additional 0.3 points for exceptional performance. Canadian universities commonly use the 4.3 scale. If your GPA is reported on a 4.3 scale, it may look inflated compared to a 4.0-scale GPA.

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