Estimate your MCAT Scaled Score based on your raw scores in each section.
Your estimated scaled score will appear here.
Understanding the MCAT Scoring System
The Medical College Admission Test (MCAT) is a standardized, multiple-choice examination designed to assess the problem-solving, critical thinking, and scientific knowledge and reasoning skills required for the study of medicine.
The MCAT is scored on a scale from 472 to 528. This total score is an average of the scaled scores from four sections:
Chemical and Physical Foundations of Biological Systems (CP): Raw score range 0-59.
Critical Analysis and Reasoning Skills (CARS): Raw score range 0-53.
Biological and Biochemical Foundations of Living Systems (BB): Raw score range 0-59.
Psychological, Social, and Biological Foundations of Behavior (PS): Raw score range 0-59.
Each section is scored individually on a scale of 118 to 132, with the middle score being 125. The total score is the sum of the scaled scores of the four sections, divided by 4, and then scaled to fit the 472-528 range.
How the MCAT Score is Calculated
The MCAT scoring process involves several steps, converting raw scores (the number of questions answered correctly in a section) into scaled scores and then a total scaled score. The conversion from raw to scaled scores is not linear and can vary slightly from one testing administration to another due to psychometric adjustments. This calculator uses a general approximation based on typical score conversions.
General Process:
Raw Score to Scaled Score: Your raw score for each section is converted into a scaled score. This conversion accounts for the difficulty of the specific exam you took.
Section Scores: Each of the four sections receives a scaled score between 118 and 132.
Total Scaled Score: The four section scaled scores are summed up.
Final Score Range: The sum is then converted to the final MCAT score, which ranges from 472 to 528. The average score is typically around 500.
Example Calculation (Illustrative):
Let's say a student achieves the following raw scores:
CP Raw Score: 45
CARS Raw Score: 38
BB Raw Score: 48
PS Raw Score: 50
Using a hypothetical raw-to-scaled score conversion chart, these raw scores might translate to scaled section scores like:
CP Scaled: 128
CARS Scaled: 127
BB Scaled: 129
PS Scaled: 130
The total scaled score would be 128 + 127 + 129 + 130 = 514.
This calculator aims to provide a reasonable estimation of this scaled score based on common conversion methodologies.
Disclaimer: This calculator provides an ESTIMATE. Actual MCAT scaled scores are determined by the Association of American Medical Colleges (AAMC) and can be influenced by test-specific scaling factors. For official scoring and admissions decisions, always refer to your official MCAT score report from the AAMC.
function calculateMcatScore() {
var cprRaw = parseFloat(document.getElementById("cprRaw").value);
var cbrRaw = parseFloat(document.getElementById("cbrRaw").value);
var bbrRaw = parseFloat(document.getElementById("bbrRaw").value);
var pbrRaw = parseFloat(document.getElementById("pbrRaw").value);
var warningDiv = document.getElementById("warning");
var resultDiv = document.getElementById("result");
// Clear previous warnings and results
warningDiv.style.display = 'none';
warningDiv.innerHTML = ";
resultDiv.innerHTML = 'Your estimated scaled score will appear here.';
resultDiv.style.backgroundColor = '#28a745'; // Reset to default green
// Input validation
var isValid = true;
if (isNaN(cprRaw) || cprRaw 59) {
warningDiv.innerHTML += 'Please enter a valid raw score for CP (0-59).';
isValid = false;
}
if (isNaN(cbrRaw) || cbrRaw 53) {
warningDiv.innerHTML += 'Please enter a valid raw score for CARS (0-53).';
isValid = false;
}
if (isNaN(bbrRaw) || bbrRaw 59) {
warningDiv.innerHTML += 'Please enter a valid raw score for BB (0-59).';
isValid = false;
}
if (isNaN(pbrRaw) || pbrRaw 59) {
warningDiv.innerHTML += 'Please enter a valid raw score for PS (0-59).';
isValid = false;
}
if (!isValid) {
warningDiv.style.display = 'block';
resultDiv.style.backgroundColor = '#dc3545'; // Indicate error
return;
}
// — Approximate Raw to Scaled Score Conversion —
// These are approximations and can vary.
// The AAMC uses complex psychometric models (e.g., Item Response Theory).
// For simplicity and general estimation, we use a piecewise linear approximation or a lookup table concept.
// This calculator uses a simplified linear mapping for demonstration.
// Define approximate mappings (simplified)
// These ranges are representative, not exact official curves.
var cprScaledApprox = approximateScaledScore(cprRaw, 59, 132, 118);
var cbrScaledApprox = approximateScaledScore(cbrRaw, 53, 132, 118);
var bbrScaledApprox = approximateScaledScore(bbrRaw, 59, 132, 118);
var pbrScaledApprox = approximateScaledScore(pbrRaw, 59, 132, 118);
// Calculate total scaled score
var totalScaledScore = cprScaledApprox + cbrScaledApprox + bbrScaledApprox + pbrScaledApprox;
// Scale the total score to the 472-528 range (average 500).
// A raw sum of (59+53+59+59) = 230 might correspond to the maximum 528.
// A raw sum of (0+0+0+0) = 0 might correspond to the minimum 472.
// The AAMC's actual scaling is more nuanced and non-linear, especially around the mean.
// For simplicity, we'll use a linear scaling based on the summed scaled scores (min 118*4=472, max 132*4=528).
var finalScore = Math.round(totalScaledScore);
// Ensure the final score is within the official MCAT range
if (finalScore 528) finalScore = 528;
resultDiv.innerHTML = "Estimated MCAT Score: " + finalScore;
}
// Helper function to approximate scaled score from raw score
// This is a simplified linear interpolation. Real MCAT scaling is non-linear.
// maxRaw: maximum possible raw score for the section
// maxScaled: maximum scaled score for the section (132)
// minScaled: minimum scaled score for the section (118)
function approximateScaledScore(rawScore, maxRaw, maxScaled, minScaled) {
if (rawScore = maxRaw) return maxScaled;
// Linear interpolation:
// scaled = minScaled + (rawScore / maxRaw) * (maxScaled – minScaled)
var scaled = minScaled + (rawScore / maxRaw) * (maxScaled – minScaled);
return Math.round(scaled);
}