MCAT Score Total Calculator
MCAT total from four section scores with average and gap.
What it does
MCAT study runs on fours: four sections, four scales, one sum. Each 118 to 132 report feeds a 472 to 528 total, and small section swings move the headline fast. Summing practice sections keeps progress visible week to week.
The tool above adds reported sections. A 125 with 127, 128, and 129 sums to 509 of 528, averages 127.25, and sits +9 above 500. That exact set mirrors the official AAMC walkthrough.
Floors and ceilings frame every report. Four 118s bottom at 472 while four 132s top at 528, with 500 as the scale middle. Percentiles shift by test year, so compare totals within recent pools.
Balance matters beside the sum. Schools weigh science sections for readiness signals while CARS shows reasoning apart from content. A lopsided 509 reads differently than a flat one, so drill the weakest section first.
How to use
- Enter Chem/Phys 118 to 132.
- Enter CARS 118 to 132.
- Enter Bio/Biochem 118 to 132.
- Enter Psych/Soc 118 to 132.
- Read the total of 528 first.
- Read average and gap to 500.
Formula
- CP
- Chemical and Physical Foundations, 118 to 132.
- CARS
- Critical Analysis and Reasoning Skills, 118 to 132.
- BB
- Biological and Biochemical Foundations, 118 to 132.
- PS
- Psychological and Social Foundations, 118 to 132.
AAMC scales each of the four sections from 118 to 132 with 125 mid, and the total sums the four from 472 to 528 with 500 mid. Raw correct counts convert to section scales with no guessing penalty. The worked 509 set mirrors the official AAMC example of 128 with 125, 129, and 127.
Worked example
Example: the official 509 set
Defaults: 125, 127, 128, 129 across the four sections. These are also the default values, so the page opens on this answer.
- Chem/Phys: 125.
- CARS: 127.
- Bio/Biochem: 128.
- Psych/Soc: 129.
- Add: 125 + 127 = 252, + 128 = 380, + 129 = 509.
- Range check: 509 sits inside 472 to 528.
- Average: 509 / 4 = 127.25.
- Gap: 509 - 500 = +9 above 500.
- Tool shows 509 of 528 with a 127.25 average and +9 above 500.
Reference table
| Sections | Total | Gap |
|---|---|---|
| 125 x 4 | 500 | +0 |
| 125, 127, 128, 129 | 509 | +9 |
| 130, 132, 131, 129 | 522 | +22 |
Limits
- Adds reported scores; no raw to scale step.
- Percentiles vary by exam year.
- Practice scales differ by form.
- Gap to 500 is not a percentile.
Common mistakes
- Averaging instead of summing.
- Expecting decimals in totals.
- Using old exam scales.
- Reading equal totals as equal files.
- Skipping the weakest section.
Try it yourself
Quick checks. Answers sit tucked under each question.
Four 125 sections?
500 of 528 with a 125 average and +0 above 500.
130, 129, 131, 132?
522 of 528 with a 130.5 average and +22 above 500.
Questions
How is the total found?
Add the four 118 to 132 sections. Here 125 + 127 + 128 + 129 = 509 of 528.
Section names?
Chemical and Physical, CARS, Biological and Biochemical, and Psychological and Social.
Ranges?
118 floors and 132 ceilings each, so totals span 472 to 528 with 500 mid.
Guessing penalty?
No penalty: raw correct counts convert to scales per section.
Does it score raw answers?
No. This tool adds reported section scores; official scales come from AAMC tables.
Equal totals, equal files?
Schools read splits with the total, so balanced and spiky equal totals differ.