Free Online Unit Converters, Financial & Scientific Calculators
Compute percentages, conversions, bandwidth transfer times, statistical distributions, loan payments, and binary math instantly.
Available Tools (30)
View in Full Directory →Loan & Mortgage EMI Amortization Calculator
Calculate monthly EMI repayments, total interest payable, loan amortization schedules, and principal payoff breakdowns.
Angle & Trigonometry Unit Converter
Convert between Degrees, Radians, Gradians, Arcminutes, Arcseconds, and Turns with live trigonometric values.
Aspect Ratio Calculator
Calculate missing width or height from an aspect ratio.
Bandwidth & Data Transfer Calculator
Calculate file download/upload times, data transfer rates, and bandwidth consumption across various network speeds.
Binary & Hex Arithmetic Calculator
Perform addition, subtraction, multiplication, and division directly on Binary, Hexadecimal, and Octal numbers.
Bitwise Operations & Shift Calculator
Interactive 32-bit and 64-bit calculator for bitwise AND, OR, XOR, NOT, NAND, NOR, Shift Left (<<), and Shift Right (>>).
Data Storage & Byte Unit Converter
Convert between Bytes, KiB, MiB, GiB, TiB (binary base-2) and KB, MB, GB, TB, PB (decimal base-10) with exact precision.
Compound Interest & Investment Growth Calculator
Calculate compound interest, future investment balance, monthly contributions, and total interest earned over time.
Energy & Power Unit Converter
Convert energy and power units between Joules, Kilocalories, Kilowatt-Hours (kWh), BTUs, Watts, and Horsepower (hp).
Factorial Calculator
Compute factorials, combinations (nCr), and permutations (nPr).
IEEE 754 Floating-Point Visualizer & Converter
Convert 32-bit single and 64-bit double precision floats into Sign bit, Exponent, Mantissa, and Hexadecimal representations.
Fraction Calculator & Simplifier
Add, subtract, multiply, and divide fractions and mixed numbers, simplify to lowest terms, and convert to decimals.
GCD & LCM Calculator
Calculate the Greatest Common Divisor and Least Common Multiple.
IPv4 Subnet Calculator & CIDR Analyzer
Calculate network address, broadcast, netmask, wildcard mask, and usable IP host ranges from CIDR.
Matrix Mathematics & Determinant Calculator
Perform 2x2, 3x3, and 4x4 matrix Addition, Subtraction, Multiplication, Determinant, Transpose, and Inverse calculations.
Modular Arithmetic & Modulo Inverse Calculator
Calculate modular arithmetic, modular exponentiation (a^b mod m), and Extended Euclidean modular multiplicative inverse.
Number to Words
Convert numeric figures into written English words.
Percentage Calculator
Calculate percentages, percentage change, and reverse percentages.
Pressure Unit Converter
Convert pressure units between Pascal (Pa), Bar, PSI, Torr / mmHg, Atmosphere (atm), and Kilopascals (kPa).
Prime Number Checker
Check if a number is prime and list its prime factors.
Random Number Generator
Generate random numbers with custom min, max, and quantity settings.
Roman Numeral Converter
Convert numbers (1–3999) to Roman numerals and back.
Sales Tax, GST & VAT Calculator
Calculate tax inclusive and tax exclusive pricing, gross totals, and net breakdown for custom sales tax and VAT rates.
Scientific & Engineering Notation Converter
Convert between standard decimals, scientific notation (1.23e+8), and engineering metric prefixes (nano to tera).
Screen PPI & Pixel Density Calculator
Calculate screen Pixels Per Inch (PPI), dot pitch, pixel density, and total megapixels from display resolution and size.
Speed, Distance & Travel Pace Tool
Calculate speed, elapsed travel time, total distance, and running pace across km/h, mph, m/s, knots, and min/km.
Descriptive Statistics Calculator
Compute Mean, Median, Mode, Variance, Standard Deviation, Quartiles, IQR, Range, and Z-Scores from numerical datasets.
Temperature Unit Converter
Convert temperatures between Celsius, Fahrenheit, Kelvin, Rankine, and Delisle with step-by-step conversion formulas.
Time Duration Calculator
Add, subtract, and convert time durations in hours, minutes, and seconds.
Timestamp to ISO 8601 Converter
Convert Unix timestamps (seconds/ms) to ISO 8601 UTC and local date formats.
High-Precision Browser-Based Computation
From networking engineers calculating bandwidth download times to finance professionals modeling compound interest, fast and reliable calculation utilities streamline everyday technical workflows.
ToolSnippet calculators feature high-precision numerical algorithms, visual sliders, multi-unit dropdowns, and responsive step-by-step mathematical breakdowns.
All math formulas run client-side with zero network delay, giving you instantaneous results as you type or adjust inputs.
Frequently Asked Questions
Everything you need to know about our free client-side calculators & math tools.
Explore Other Categories
All Categories (9) →Data & Schema Converters
Convert, format, transform, and structure data between JSON, CSV, XML, YAML, SQL, TSV, TOML, and database schemas instantly in your browser.
Text & String Utilities
Format, count, sanitize, sort, filter, deduplicate, and analyze text strings with zero latency and complete privacy.
Design & CSS Generators
Create modern CSS animations, glassmorphism effects, box shadows, gradients, color palettes, and SVG code with instant visual previews.