Numbers behind every test score, GPA, and tuition decision.
Test scores, GPAs, scholarships, financial aid, study planning, and citations — the math behind every step from application to graduation.
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Hand-picked starters.
Scores, grades, and study planning.
Compare SAT/ACT scores, convert GPAs, plan your week of study, and format citations — the academic-performance toolkit.
SAT / ACT Score Comparison
Drag the SAT score — see the equivalent ACT composite and national percentile update live.
Test-Prep Effort Budget
Drag the study hours and weeks until test day — see the estimated SAT score lift you can realistically expect.
From first test to final transcript.
Four stages of the school run — test prep, applications, tuition math, and the countdown to the gown.
Build the score early.
Concordance between SAT and ACT plus a realistic prep budget — know which test favors you before senior fall.
Know where your score lands.
Percentile context for every test on the application, and an aid estimate before the FAFSA even opens.
Make the tuition math work.
Scholarship dollars versus net cost, and the debt-to-salary check that should run before you sign the loan.
Finish on time, on budget.
Project the graduation date from credits done, and keep the semester GPA where the transcript needs it.
Bigger than one calculator? Follow the flow.
Multi-step paths that string the right education tools together in the order most people actually use them — with your numbers carried from step to step.
Is the degree worth it?
Scholarship NPV, FAFSA aid estimation, and the salary-to-debt ratio that tells you whether the loan math actually works.
Scholarship ROI
Drag the award amount and tuition. The widget computes net cost, hours-of-work-saved, and effective return per dollar awarded.
Tuition vs Earnings ROI
Drag 4-yr cost and starting salary. The widget plots cumulative net earnings against the no-degree baseline.
Borrowing, payoff, and debt math.
What the loan actually costs, how fast you can be debt-free, and whether the salary covers the math.
Student Loan Payoff
Drag balance, APR, and monthly payment — see months to debt-free, total interest, and the balance-decay curve.
Student Loan Repayment
Compare standard, graduated, and income-driven repayment plans — see total cost and time to debt-free.
IDR vs Standardtotal cost & payoff dateFrom the other shelves.
Student math doesn't stop at this category — grade averages, 529 savings, loan repayment, and focus timers live next door.
The education vocabulary, decoded.
Every definition links to the calculator that puts the term to work. Browse the full glossary →
SAI = parent contribution + student contribution − allowancesThe Student Aid Index from your FAFSA — the number colleges subtract from cost of attendance to size your aid.Student-loan DTI = monthly loan payment / gross monthly incomeLenders and counselors flag education debt above 8–10% of gross income.GPA = Σ(grade points × credit hours) / Σ credit hoursThe credit-weighted average behind every transcript.Frequently asked questions
How accurate is the SAT-to-ACT concordance?
Our concordance uses the official College Board / ACT concordance table — the most current cross-test mapping published by both testing organizations. It's the same lookup that universities and counselors use, so the ACT equivalent shown here is accepted by admissions offices.
Are the FAFSA aid numbers binding?
No — the Financial Aid Calculator gives an estimate based on the 2024–25 FAFSA Student Aid Index (SAI) formula. Your real aid package depends on the school's full need-analysis (institutional formula, COA, available institutional aid). Use this number to compare schools before the FAFSA opens, not as a guaranteed offer.
Which GPA scale should I use?
U.S. high schools and most U.S. universities use 4.0 unweighted. Some high schools weight honors / AP courses on a 5.0 scale. International grading often runs on a 10-point or percentage system. The GPA converter accepts all three and shows the U.S. 4.0 equivalent that admissions readers expect.
Is "Scholarship ROI" really a return on investment?
Strictly speaking, a scholarship is a discount, not an investment. We use "ROI" because it captures the right intuition: dollar awarded vs. cost avoided, and the equivalent hours of work you would otherwise need to cover that tuition. The calculator surfaces those numbers separately — there's no leveraged comparison or compounding assumed.
What's a "safe" student loan DTI?
A standard rule of thumb is that total student debt at graduation should not exceed your expected first-year salary (1.0× ratio). Some financial planners use 0.6–0.8× as a more conservative threshold. The Student Loan DTI calculator runs both checks and flags borderline cases.
11 categories, one search box, zero signups. If it has a number, we calculate it.
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