StarvardCompound Interest Calculator
See what savings and monthly contributions can grow into, year by year.
Open the tool →Loan Payoff Calculator
Monthly payment, payoff time, and the true total interest on any loan.
Open the tool →50/30/20 Budget Calculator
Split take-home pay into needs, wants, and savings, then compare with real spending.
Open the tool →GPA Calculator
Add courses, grades, and credits for your weighted GPA, updated as you type.
Open the tool →Study Timer
A Pomodoro style timer: 25 minutes of focus, 5 of break, and a session counter.
Open the tool →Word Counter
Words, characters, sentences, plus reading time and speaking time for any text.
Open the tool →Sleep Cycle Calculator
Bedtimes and wake times that land at the end of a full 90 minute sleep cycle.
Open the tool →Tip and Split Calculator
Tip, total, and what each person pays, settled before the check even cools.
Open the tool →Unit Converter
Length, weight, and temperature: miles to kilometers, pounds to kilos, F to C.
Open the tool →Percentage Calculator
All three percent questions on one page: of a number, out of a number, and change.
Open the tool →Every tool runs right here in your browser. Nothing you type is sent anywhere, stored anywhere, or sold to anyone. That is the Starvard way.
A note on accuracy: Much of what you read at Starvard was created with help from AI agents, working alongside people. We check what we can, but we cannot guarantee that everything here is true, current, or complete. If something really matters, your health, your money, a grade, a job, please verify it with a trusted source before you rely on it.