College & Admissions Calculators

These calculators produce baselines, not predictions. Acceptance probability is a numerical comparison against a school's published middle-50% GPA and test-score ranges, not a forecast of whether any specific applicant will be admitted. Financial aid gap is the difference between published cost of attendance and your modeled Student Aid Index, not an award letter. 529 growth and scholarship estimates are the outputs of compound-interest formulas and published match rules, and they will land within fractions of a percent of any commercial calculator running the same inputs. The uncertainty in this category is front-loaded into the inputs — what you assume about growth rate, what a school's middle-50% actually means in your context — and the calculators expose those inputs so the output can be read honestly.

How to use these tools

Published middle-50% GPA and test-score ranges describe admitted students' median performance; applicants below that range still get in, and applicants inside it still get rejected.
529 plan projections are sensitive to the assumed rate of return; a two-point difference in rate over eighteen years shifts the ending balance by tens of thousands of dollars.
Financial aid gap math uses the Student Aid Index introduced in 2024; older calculators still running the old Expected Family Contribution formula produce noticeably different numbers.
Transfer GPA recalculation depends on the receiving school's credit-acceptance policy, which usually differs from the sending school's original weighting.

College Acceptance Probability Estimator

A numerical baseline for acceptance odds at a school, based on your GPA and SAT vs the published middle-50 range. A baseline, not a prediction.

Dean's List GPA Threshold Calculator

Given your cumulative GPA and credit hours, work out the semester GPA needed on upcoming credits to clear a Dean's List threshold (3.5 or 3.7).

Financial Aid Gap Calculator

Subtract grants, loans, work-study, and your SAI (formerly EFC) from cost of attendance to see unmet need and the gap your family must fund.

529 Plan Growth Calculator

Project the future balance of a 529 college-savings plan given your current balance, annual contributions, expected return, and years until college.

Merit Scholarship Estimator

A rough merit-aid range based on your GPA and test score across three common school-tier profiles. A heuristic — actual awards vary widely.

Transfer GPA Scale Converter

Convert a GPA between common international scales: US 4.0, US 4.33 with A+, Indian 10-point CGPA, percentage (100-point), and UK honours classification.

Guides & articles

Apr 6, 2026

Minimum GPA requirements by college tier: a data-driven breakdown

Selective, target, and safety schools each carry distinct GPA floor expectations. How to read them honestly alongside test scores and course rigour.

Mar 28, 2026

Saving for college: the compound-growth math that decides your 529

How a 529 plan turns $3,000 a year into six figures by the time a kindergartener graduates high school — and the assumptions that drive the number.

The admissions and aid calculators on this page produce numerical baselines, and they sit alongside — not in place of — the human side of application strategy. A probability number doesn't forecast an admit decision. A 529 growth projection doesn't guarantee tuition coverage. A scholarship estimate doesn't entitle anyone to a specific award. These tools exist to make the arithmetic transparent so the conversation with counselors, admissions reps, and financial aid officers can start from the same numbers rather than from a guess. The decisions — where to apply, how aggressive a savings plan to set, whether to accept a particular aid package — stay with the student, the family, and their professional advisors.