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Frizbo Calculator — Academic Hub
Free Online Academic Calculators — No Sign-Up Required

Know your numbers.
Own your academics.

Most students guess at their GPA, estimate attendance, and hope the final grade works out. frizbo replaces guesswork with accurate results — instantly, for free.

Most Used Tool

Free Online GPA Calculator

3 × 4 + 2 × 3
3.75
Pair It With

Academic Performance

08 tools
01
GPA Calculator
Weighted credit-hour formula. Get your semester GPA and cumulative CGPA in one pass — no spreadsheet needed.
2 tools
02
Grade Calculator
Final grade, weighted average, or overall course score — enter your marks and weights, get a result that actually reflects how you're doing.
3 tools
03
Marks Percentage
Raw marks mean little without context. Convert any score to a clean percentage and see exactly where it sits on a grading scale.
1 tool
04
Grade Predictor
Know what score you need before the exam, not after. Works backward from your target grade to give you a precise minimum to aim for.
2 tools
05
Class Rank
GPA alone doesn't tell you where you stand. Input your score and class distribution to estimate your percentile rank among peers.
1 tool
06
Attendance Calculator
Most institutions require 75% attendance to sit exams. Find your current percentage and how many classes you can still afford to miss.
1 tool
07
Assignment Calculator
Not all assignments carry equal weight. See the minimum score required on each task and how much it can realistically shift your final grade.
1 tool
08
Study Hours
Spreading revision across too few days is one of the most common exam mistakes. Plan your daily hours based on subject count and time remaining.
1 tool

Math Homework Helpers

07 tools
01
Scientific Calculator
Handles trig functions, natural logs, exponents, and more. Accurate to enough decimal places that your physics professor won't notice the difference.
1 tool
02
Graphing Calculator
Plot single or multiple functions on a live coordinate grid. Useful for spotting intersections, maxima, and behavior at the edges of a domain.
1 tool
03
Quadratic Formula
Enter a, b, and c — get both roots with a full step-by-step breakdown of the discriminant. Works for real and complex solutions.
1 tool
04
Factorization
LCM, GCF, and prime factorization in one place. Particularly handy for fraction simplification and number theory problems.
3 tools
05
Root Calculators
Square, cube, or any nth root — computed instantly with a decimal result. Useful anywhere a radical sign appears in your homework.
3 tools
06
Exponents & Logs
Raise any base to any power, or find a logarithm in any base — including natural log. Both operations in one clean interface.
2 tools
07
Scientific Notation
Convert between standard and scientific notation either way. Handles very large and very small numbers without rounding errors creeping in.
1 tool

Everyday Student Tools

06 tools
01
Percentage Calculator
What's 18% of 340? How much did that price increase? Covers percentage of, percentage change, and reverse percentage in a single tool.
1 tool
02
Fraction Calculator
All four operations on fractions — with automatic simplification to lowest terms. Mixed numbers supported, no manual conversion required.
1 tool
03
Age Calculator
Enter a date of birth and get your exact age broken down to years, months, and days. Also shows days until the next birthday.
1 tool
04
Date & Time
Days between two dates, time arithmetic, and total hours worked — three distinct calculators that cover the date and time problems students hit most often.
3 tools
05
Number to Words
Converts any number into correctly spelled-out words. Built for cheques, legal documents, and invoices — handles up to 20-digit values accurately.
1 tool
06
Word Counter
Paste any text and get a live count of words, characters, sentences, and paragraphs. Useful when your essay has a strict limit and you're cutting it close.
1 tool

EVERY NUMBER HAS AN ANSWER. FRIZBO FINDS IT.

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