Calculations & Math
Scientific calculations, percentages, amortized loans, compound interest, exact age, currency exchange, and unit conversions.
Percentage Calculator
Solve 3-way percentage equations: calculate percentage of a number, percentage increase/decrease, markup discounts, and fraction ratios.
Amortized Loan Calculator
Compute monthly mortgage and loan EMI payments, principal vs. interest breakdown, and complete month-by-month amortization schedules.
BMI Health Calculator
Calculate Body Mass Index (BMI) instantly in Metric (kg/cm) and Imperial (lbs/ft/in) with WHO health category breakdown and ideal weight range.
Exact Age Calculator
Calculate exact chronological age down to years, months, weeks, days, hours, and minutes from your date of birth with upcoming birthday countdown.
Calculator
All-in-one advanced calculator: Standard & Scientific expressions, 2D Interactive Graphing Canvas, 64-bit Programmer Bit Matrix, and Financial Loan EMI.
Compound Interest Planner
Forecast investment growth and wealth compounding over time with regular deposits, compounding frequency options, and interactive growth charts.
Dynamic Unit Converter
Convert measurement units across Length, Mass/Weight, Temperature, Volume, Area, Speed, Time, and Digital Storage with high precision.
Live Currency Converter
Convert fiat currencies in real time with updated international foreign exchange rates across USD, EUR, GBP, JPY, INR, CAD, and AUD.
Binary Arithmetic Solver
Perform binary addition, subtraction, multiplication, and division with step-by-step arithmetic breakdown and decimal/hex representations.
Sales Tax / VAT Estimator
Calculate pre-tax net prices, gross totals, and sales tax or VAT breakdown amounts with custom regional tax rates.
Prime Factorization Finder
Calculate prime factor decompositions, exponential prime representations, and factor trees for any positive integer instantly.
Standard Deviation Calculator
Calculate Mean, Sum, Standard Deviation (σ and s), Variance, and Standard Error from data sets with step-by-step mathematical formulas.
Fraction Simplifier Engine
Simplify fractions to simplest form using Greatest Common Divisor (GCD) with mixed number conversion and decimal equivalents.
Matrix Algebra Operator
Perform matrix operations: matrix addition, subtraction, scalar multiplication, matrix multiplication ($A \times B$), determinants, and transpositions.
Fibonacci Sequence Generator
Generate arbitrary terms of the Fibonacci sequence with large number support, term index lookup, and golden ratio ($phi$) calculations.
Why Use CrazyTools4U Calculations & Math?
Traditional online converters and utilities require you to upload your files to remote servers. This introduces bandwidth lag, security liabilities, and privacy exposure for sensitive files.
All utilities in the Calculations & Math suite on CrazyTools4U run entirely on the client side using WebAssembly (WASM), HTML5 Canvas pipelines, and Web Workers. Your raw files never leave your device memory, ensuring complete zero-server privacy and lightning-fast execution.