Free Online Calculators & Converters
80+ free tools for math, finance, health & everyday use — BMI, EMI, mortgage, scientific calculator, percentage, currency converter & more. Instant results. No signup needed.
Age Calculator
Calculate exact age in years, months & days
BMI Calculator
Calculate Body Mass Index (BMI) for adults
Percentage Calculator
3 percentage tools in 1 — instant results
EMI Calculator
Calculate monthly loan payments
GST Calculator
Add or remove GST instantly
Discount Calculator
Calculate final price after discount
Tip Calculator
Split bills and calculate tips easily
Date Calculator
Calculate days between two dates
Length Converter
Convert km, miles, meters, feet, inches
Weight Converter
Convert kg, pounds, grams, ounces
Temperature Converter
Convert Celsius, Fahrenheit, Kelvin
Currency Converter
Live exchange rates for 150+ currencies
Speed Converter
Convert mph, km/h, m/s, knots
Area Converter
Convert sq ft, sq m, acres, hectares
Word Counter
Count words, characters & sentences
Text Case Converter
Convert to UPPER, lower, Title Case
Password Generator
Generate strong random passwords
Random Number Generator
Generate random numbers in any range
Calorie Calculator
Calculate daily calorie needs (TDEE)
Body Fat Calculator
Calculate body fat percentage
Sleep Calculator
Find best times to wake up or sleep
Water Intake Calculator
Calculate your daily hydration goal
Pregnancy Due Date Calculator
Calculate your due date & pregnancy milestones
Macro Calculator
Calculate your ideal protein, carb & fat intake
Ideal Weight Calculator
Find your ideal body weight using 5 formulas
Blood Pressure Calculator
Check your BP reading & health category
Running Pace Calculator
Calculate pace, speed & finish time for runs
Gratuity Calculator
Calculate gratuity amount as per Payment of Gratuity Act 1972
CGPA Calculator
Convert CGPA to percentage for all Indian universities
Salary Hike Calculator
Calculate new salary after percentage hike or increment
Fuel Cost Calculator
Calculate petrol/diesel cost for any trip or monthly usage
Notice Period Calculator
Calculate last working day and notice period buyout amount
Mortgage Calculator
Calculate monthly payments, interest & amortization
Loan Calculator
Calculate monthly payments for any loan type
Compound Interest Calculator
See how your money grows over time
Investment Calculator
Project portfolio growth and investment returns
Auto Loan Calculator
Calculate monthly car payments and true cost
Credit Card Payoff Calculator
Find your debt-free date and best payoff strategy
Scientific Calculator
Full scientific calculator with trig, log and more
Fraction Calculator
Add, subtract, multiply and divide fractions
Square Root Calculator
Calculate and simplify square roots and radicals
Ratio Calculator
Simplify ratios and solve proportion problems
Average Calculator
Calculate mean, median, mode and full statistics
Prime Number Checker
Check primes and find prime factorization
Volume Converter
Convert ml, liters, cups, gallons, fluid oz instantly
Data Size Converter
Convert MB, GB, TB, KiB, GiB — decimal & binary
Time Zone Converter
Convert and compare times across global time zones
Days Until Calculator
Calculate days until Christmas, New Year, or any custom date
Hours Calculator
Calculate total work hours and earnings for shifts
Unix Timestamp Converter
Convert Unix epoch timestamps to human-readable dates
World Clock
Track current local time in cities worldwide
Image to Base64
Convert images to Base64 strings instantly
Image Compressor
Compress PNG, JPEG, WebP images client-side
Image Resizer
Resize images by width, height or scale
Aspect Ratio Calculator
Calculate dimensions and ratios for video/images
JSON Formatter & Validator
Format, minify, and validate JSON data instantly
Base64 Encoder & Decoder
Encode and decode text to and from Base64 format
Color Converter (HEX↔RGB↔HSL)
Convert color values between HEX, RGB, and HSL formats
URL Encoder & Decoder
Encode and decode URLs instantly
Lorem Ipsum Generator
Generate placeholder text for design layouts
Regex Tester
Test regular expressions in real-time with highlighted matches
MD5/SHA Hash Generator
Generate cryptographic hashes including MD5, SHA-1, SHA-256, and SHA-512
CSS Gradient Generator
Design and generate CSS background gradients
Cron Job Expression Builder
Build cron job expressions and translate them to readable text
Roman Numeral Converter
Convert numbers to Roman numerals and vice versa
Binary/Hex/Decimal Converter
Convert numbers between binary, hexadecimal, octal, and decimal
GPA Calculator
Calculate your GPA from grades and credit hours
Grade Calculator
Calculate your final grade with weighted assignments
Typing Speed Test
Test your typing speed and accuracy in words per minute
Reading Time Calculator
Estimate reading time for any text or article
Timezone Meeting Planner
Find the best meeting time across multiple time zones
SIP Calculator
Calculate returns on Systematic Investment Plans (SIP) in India
FD Calculator
Calculate Fixed Deposit (FD) maturity value & interest earned
PPF Calculator
Calculate Public Provident Fund (PPF) growth and interest
Income Tax Calculator
Compare Old vs New Tax Regime side-by-side (Union Budget 2025)
HRA Calculator
Calculate tax-exempt and taxable House Rent Allowance (HRA)
TDS Calculator
Calculate Tax Deducted at Source (TDS) based on PAN status
NPS Calculator
Estimate retirement corpus and monthly pension under NPS
RD Calculator
Calculate Recurring Deposit (RD) maturity value & returns