Free tool
A free, no-signup Pomodoro timer with customizable work and break lengths. Set it, start it, and it auto-advances through work and break phases, counting completed sessions as it goes.
Runs entirely in this tabThe timer gets you sitting down; Encodr's feed decides what's worth reviewing once you are.
Get started freeThe classic structure is 25 minutes of focused work followed by a 5-minute break, with a longer 15-20 minute break after every 4th work session - all of it adjustable here to fit a longer or shorter attention span. The mechanism it's really solving for is starting: a fixed, short work block lowers the activation energy to sit down, since "25 minutes" feels far more finishable than "study until done." It doesn't change what you retain from that time - that still depends on what you do inside each block (active recall beats passive rereading regardless of the timer), so pair it with material that's actually testing you, not just re-reading notes on a clock.
A fixed timer doesn't change what spaced repetition or retrieval practice do - it changes whether you sit down at all.
Where the rule comes from, when it overshoots, and when it badly undershoots what a course actually needs.
Spaced repetition and retrieval practice were tested on word lists and vocabulary, not just MCAT content - what carries over to engineering, business, and art courses.
Log your practice tests - score, breakdown, conditions, date - and get a weighted prediction of your real MCAT score.
Open tool →Calculate your cumulative GPA and BCPM science GPA on the AMCAS 4.0 scale.
Open tool →Enter your exam date, hours needed, and difficulty to see how much less time targeted review actually takes.
Open tool →Enter passages completed and minutes elapsed to see your current pace and whether you are on track to finish the CARS section on time.
Open tool →See the Ebbinghaus forgetting curve for cramming vs. spaced review, and where each review session resets your retention.
Open tool →Enter a course, its credit hours, and how memorization-heavy it is to get a recommended daily and weekly study load.
Open tool →Enter your current grade, the final's weight, and your target grade to see the exact score you need on the final.
Open tool →Calculate your unweighted and weighted GPA (honors +0.5, AP/IB +1.0) side by side - not just pre-med, works for any transcript.
Open tool →Enter total questions and the passing percentage to see exactly how many you can miss and still pass.
Open tool →Enter deck size and your new-cards-per-day pace to see when first exposure finishes and your steady-state daily review load.
Open tool →Enter your grading categories and their weights to see your current overall grade, even with categories still outstanding.
Open tool →Convert instantly between letter grades, percentages, and 4.0-scale GPA points.
Open tool →Convert between metric and imperial units for length, mass, pressure/stress, torque, and volume flow rate - built for engineering coursework, not just everyday conversions.
Open tool →Enter two measurements with their uncertainties to see the propagated uncertainty in a sum, difference, product, or quotient.
Open tool →Enter a discount rate and a series of cash flows to get both the net present value and the internal rate of return.
Open tool →Enter fixed costs, price per unit, and variable cost per unit to see exactly how many units - and how much revenue - it takes to break even.
Open tool →Enter your participation, case write-up, project, and exam weights to see your current grade in a case-method business course.
Open tool →Score your own work against a weighted studio rubric - concept, execution, craft, presentation, and reflection - before a critique or portfolio review.
Open tool →Enter one source once and get correctly formatted citations in APA, MLA, and Chicago side by side, for books, websites, and journal articles.
Open tool →Enter total pages, days available, and how dense the reading is to see how many pages a night it actually takes to keep up.
Open tool →Enter your total credit hours this term to see the weekly study time the standard "2-3 hours per credit hour" rule recommends.
Open tool →Enter your current GPA, credits earned, target GPA, and credits this semester to see the exact GPA you need this term.
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