How Ivy Leagues Translate IB Scores of 5, 6, and 7 Into Their Academic Index

The Number Translation

You are an international student applying to the United States. Your transcript does not have 'A's or 'B's. It has single digits.

IB HL Biology: 6

IB SL Math: 5

IB HL History: 7

When you apply to an Ivy League university via the Common App, how do they convert these numbers into their internal Academic Index (which requires a 4.0 scale baseline)?

The Unofficial 1-7 Conversion Scale

Because the IB program is globally standardized, US universities trust the grading scale far more than a random local high school's GPA system.

While every college has a slightly different algorithm, the standard translation for US admissions is highly generous:

7 (Excellent): Converts to an A+ / A (4.0). (Colleges know a 7 is incredibly rare and represents true mastery).

6 (Very Good): Converts to an A / A- (4.0 or 3.7). (A 6 is still considered excellent and fully satisfies top-tier academic requirements).

5 (Good): Converts to a B+ / B (3.3 or 3.0). (This is where you start losing competitive edge for Ivy Leagues).

4 (Satisfactory): Converts to a C (2.0).

1 - 3 (Failing): Unacceptable for university admissions.

The HL vs SL Difference

The translation scale above is primarily for Higher Level (HL) subjects. HL subjects are notoriously difficult (comparable to second-year college courses). Admissions officers will often look at a 5 in HL Physics and mentally treat it with the same respect as an 'A' in an AP Physics class, knowing the IB curriculum is vastly deeper.

Standard Level (SL) subjects are less rigorous. A '5' in an SL class will almost universally be viewed as a 'B'.

The Strategy: Do not try to manually convert your IB scores into a 4.0 GPA on the Common App. Leave it exactly as it is (out of 45, or individual 1-7 scores). The admissions officers at elite universities are highly trained in reading IB transcripts, and if you try to Americanize it yourself, you will likely undersell the rigor of your accomplishments.