<p>“With so many IB parents on this thread, I am hoping someone can explain how GPA is calculated from IB grades. My S’s school marks with the IB 1 to 7, with 7 equivalent to an A+ and 6 equivalent to an A and so forth.”</p>
<p>[A</a> guide to the International Baccalaureate (IB) Diploma Programme for universities and colleges - how to interpret IB grades and transcripts](<a href=“http://www.ibo.org/diploma/recognition/guide/slidef.cfm]A”>http://www.ibo.org/diploma/recognition/guide/slidef.cfm)</p>
<p>This is how one Canadian university does the conversion:</p>
<p>[International</a> Baccalaureate - Grade Conversion](<a href=“Office of the Registrar”>Office of the Registrar)</p>
<p>I think a reasonable conversion is:</p>
<p>IB 7 = A
IB 6 = A-
IB 5 = B+
IB 4 = B
IB 3 = C
IB 2 = D
IB 1 = F</p>
<p>You can argue that an IB 7 = A+ and IB 6 = A but many high schools don’t award and many colleges don’t give any extra weight to an A+ so it would mean an IB 7 = IB 6, which clearly IB does not intend to be the case. And if you look at the IBO link I provided above, they say for the EE and TOK, an A is excellent and a B is good. Since an IB 7 is excellent and an IB 6 is very good, I think it is more reasonable to assume an IB 7 = A and an IB 6 = A-.</p>
<p>Using similar reasoning to what I used to conclude that IB 7 = A and IB 6 = A-, you could argue that the scale should be:</p>
<p>IB 7 = A
IB 6 = A-
IB 5 = B
IB 4 = C
IB 3 = D
IB 2 = F
IB 1 = F</p>
<p>That is similar to how the Canadian university interprets the IB grades. But that seems harsh to me and there is no distinction between an IB 2 and an IB 1. So I would go with the first conversion.</p>
<p>Then for an unweighted GPA (meaning the highest is a 4.0), I think this is a reasonable conversion:</p>
<p>IB 7 = 4.0
IB 6 = 3.7
IB 5 = 3.3
IB 4 = 3.0
IB 3 = 2.0
IB 2 = 1.0
IB 1 = 0.0</p>
<p>Most high schools and college admissions calculate a weighted GPA. Many give 1 extra point for an IB class or an AP class, although I have seen some that give 2 extra points. Some give 0.5 extra points for a pre-IB or Honors class. Some count pluses or minuses, some don’t. </p>
<p>I think if you want to estimate the weighted GPA, this is a reasonable conversion:</p>
<p>IB 7 = 5.0
IB 6 = 4.7
IB 5 = 4.3
IB 4 = 4.0
IB 3 = 3.0
IB 2 = 2.0
IB 1 = 1.0</p>