LSAT Score Predictor

This calculator projects a likely LSAT score from your recent practice test trend and remaining prep time, weighting your most recent performance most heavily on the theory that recent scores are the best predictor of where you're headed. Predicted Score is a weighted blend -- 50% your most recent test, 30% your middle test, and 20% your earliest test -- plus a Study Bonus added on top for remaining prep time. That bonus follows a diminishing-returns model: it scales with the square root of Total Study Hours Left rather than linearly, reflecting the common observation that early study hours produce the biggest score gains while additional hours beyond a certain point yield progressively smaller improvements. Score Range simply brackets the Predicted Score plus or minus 3 points to acknowledge normal test-day variability, and Est. Percentile approximates where that score falls on the roughly 120-180 scale using a straight linear scaling -- the real LSAT score-to-percentile curve published by LSAC is S-shaped, not linear, so this approximation can diverge materially from the official table, especially in the 155-175 range where the real curve is steepest.

Law School Tier maps the Predicted Score against commonly cited competitiveness bands for different law school groups. Avg Practice Score is simply the unweighted arithmetic mean of your three practice test scores, shown alongside the recency-weighted Predicted Score for reference. Practice Test 3 Score (your most recent test) is what this calculator weighs most heavily, both directly through the 50% weighting and again through Score Trend, which measures your improvement from Practice Test 1 to Practice Test 3. What it does not account for: this is a simplified statistical model, not an official LSAC prediction -- actual score gains depend heavily on which specific areas you're weak in, the quality (not just quantity) of your study time, and individual test-day performance, none of which a hours-and-scores formula alone can capture.