Calculators Directory
Access free, fast, and accurate online calculators categorized by math, finance, date & time, health, converters, developer tools, AI micro-tools, and everyday utilities.
Math Calculators
Solve percentages, averages, ratios, fractions, profit and loss, and everyday mathematical problems instantly.
Percentage Calculator
Calculate percentages, find what percent a number is of another, or calculate values from percentages.
Percentage Increase Calculator
Calculate the percentage increase from an initial value to a final value.
Percentage Decrease Calculator
Calculate the percentage drop or reduction between an initial value and a smaller final value.
Average Calculator
Calculate the arithmetic mean, sum, count, minimum, and maximum of a set of numbers.
Ratio Calculator
Simplify ratios to simplest form and solve proportions.
Fraction Calculator
Add, subtract, multiply, and divide fractions.
GPA & Weighted Grade Calculator
Calculate semester and cumulative Grade Point Average (GPA), weighted grade points, and class credits.
Profit & Loss Calculator
Calculate profit or loss amount and percentage based on cost price and selling price.
Discount Calculator
Calculate sale prices and savings after applying discount percentages.
Finance Calculators
Estimate loan EMIs, simple & compound interest, SIP returns, fixed deposits, GST, and inflation impact.
EMI Calculator
Calculate Equated Monthly Installment (EMI) for home, car, and personal loans.
Loan Calculator
Estimate loan monthly payments and total payback cost.
Compound Interest Calculator
Calculate compound interest growth on savings and investments.
Simple Interest Calculator
Calculate simple interest on principal amounts.
SIP Calculator
Estimate returns on Systematic Investment Plans (SIP) in mutual funds.
FD Calculator
Calculate Fixed Deposit (FD) maturity value and interest earned.
GST Calculator
Calculate Goods and Services Tax (GST) inclusive and exclusive amounts.
FIRE Calculator - Financial Independence & Early Retirement
Calculate your FIRE number, years to financial freedom, and safe passive withdrawal rate with interactive compounding retirement projections.
Step-Up SIP Calculator & Inflation Deflator Engine
Calculate mutual fund systematic investment plan wealth creation with annual contribution step-up %, 6% real purchasing power deflator, and cost of delay analysis.
Date & Time Calculators
Calculate exact age, days between dates, working business days, date additions/subtractions, and time differences.
Age Calculator
Calculate your exact age in years, months, days, hours, and next birthday.
Date Difference Calculator
Calculate exact duration and number of days between two dates.
Working Days Calculator
Calculate business working days between two dates, excluding weekends.
Health & Fitness Calculators
Screen Body Mass Index (BMI), Basal Metabolic Rate (BMR), daily calorie needs, and healthy weight ranges.
BMI (Body Mass Index) Calculator
Calculate Body Mass Index (BMI) score, weight category, and healthy weight ranges.
BMR (Basal Metabolic Rate) Calculator
Calculate Basal Metabolic Rate (BMR) calories burned at rest using the Mifflin-St Jeor equation.
TDEE (Total Daily Energy Expenditure) Calculator
Calculate total daily calorie expenditure (TDEE), maintenance calories, and deficit targets.
Everyday Calculators
Practical utility tools for fuel trip costs, electricity consumption, paint coverage, and room tile estimates.
Fuel Cost & Road Trip Splitter Calculator
Calculate total gas/fuel trip expenses, mileage consumption, and per-person cost splits for road trips, daily commutes, and group travel.
Tip & Restaurant Bill Splitter Calculator
Calculate exact tip percentages, gratuities, and split dining checks evenly per person with round-up options and instant receipt breakdowns.
Appliance Electricity Cost Calculator
Calculate power consumption and daily, monthly, and annual electric bills for home appliances from wattage ratings and kilowatt-hour utility rates.
Unit Converters
Convert units of length, weight, temperature, data storage, area, volume, and speed instantly.
Length Converter
Convert units of length: meters, feet, inches, kilometers, miles, centimeters, and yards.
Weight Converter
Convert weight and mass units: kilograms, pounds, grams, ounces, and metric tons.
Temperature Converter
Convert temperature units: Celsius, Fahrenheit, and Kelvin.
Area Converter
Convert area units: square meters, square feet, acres, and hectares.
Volume Converter
Convert liquid and space volume units: liters, milliliters, gallons, and cubic meters.
Data Storage Converter
Convert digital data storage units: Bytes, KB, MB, GB, and TB.
Speed Converter
Convert speed units: meters per second (m/s), km/h, mph, and knots.
Live Currency Converter
Convert global foreign exchange currencies in real time: USD, EUR, GBP, INR, JPY, CAD, AUD, and 30+ currencies with live mid-market exchange rates.
Pressure Converter
Convert pressure units: Pascal (Pa), Bar, PSI, and Atmosphere (atm).
Text Tools
Browser-based text analysis: count words, characters, and sentences, change text case, remove duplicate lines, and clean whitespace.
Word Counter
Count words, characters, sentences, paragraphs, and estimated reading time locally in your browser.
Character Counter
Count exact characters with and without spaces locally in your browser.
Sentence Counter
Count total sentences in your text locally in your browser.
Reading Time Calculator
Calculate estimated reading time for articles and essays.
Case Converter
Convert text letter case: UPPERCASE, lowercase, Title Case, and Sentence case.
Remove Duplicate Lines
Remove duplicate lines from text lists locally in your browser.
Fancy Font Generator & LinkedIn Post Styler
Convert standard text into 25+ bold, italic, aesthetic, and gothic Unicode font styles for LinkedIn, Twitter, and Instagram bios.
Free Invoice Generator & PDF Receipt Maker
Create clean, professional freelance invoices and payment receipts with customizable line items, tax calculation, and 1-click PDF download.
PDF Merger & Combiner
Combine multiple PDF documents into a single organized PDF file directly in your browser with 100% client-side privacy.
PDF Splitter & Page Extractor
Extract specific pages or page ranges from PDF documents directly in your browser with 100% client-side privacy.
Image to PDF Converter
Convert JPG, PNG, and WebP images to high-quality PDF documents online free with 100% client-side privacy.
PDF Rotator & Page Reorient Tool
Rotate PDF pages 90°, 180°, or 270° clockwise or counter-clockwise free online with 100% client-side browser privacy.
PDF Watermark & Page Numbering Tool
Add custom text stamps, 'CONFIDENTIAL' watermarks, or automatic page numbers to PDF documents online free with 100% client-side privacy.
PDF File Size Compressor Tool
Reduce PDF document file size for email attachments and Web uploads online free with 100% client-side privacy.
PDF Text Editor & Form Filler Tool
Fill PDF forms, add text fields, signatures, and custom text annotations to PDF documents free online with 100% client-side privacy.
LinkedIn Carousel PDF Generator & Slide Deck Builder
Design high-converting 1080x1080 LinkedIn PDF carousels and slide decks free online with zero watermarks.
Government Portal PDF Compressor & Target KB Size Reducer
Compress PDF files online to exact target KB limits (200KB EPFO, 300KB Passport, 500KB Vahan, 5MB ITR) with 100% client-side privacy.
Aadhaar Card Front & Back PDF Merger & Digital ID Page Assembler
Merge separate front and back ID photos or PDFs of Aadhaar cards, PAN cards, or Voter IDs into a single printable A4 PDF page.
India Tools
India-specific financial and tax utilities: Income Tax (New Regime), Gratuity, PPF, Salary Take-Home, and NPS estimates.
Take-Home Salary Calculator India
Calculate monthly take-home salary after PF, professional tax, and income tax deductions.
CTC Calculator India
Break down Cost to Company (CTC) into Basic salary, HRA, Special Allowance, and PF.
Gratuity Calculator India
Calculate gratuity payout amount payable under the Payment of Gratuity Act.
PF Calculator India
Calculate Provident Fund (EPF) employee and employer contributions.
PPF Calculator
Calculate Public Provident Fund (PPF) maturity amount and interest earned over 15 years.
NPS Calculator India - National Pension Scheme Corpus & Annuity Estimator
Calculate your National Pension System (NPS) maturity corpus, tax-free lump sum withdrawal, and guaranteed monthly pension annuity.
India Income Tax Calculator (New Tax Regime)
Estimate India income tax payable under the New Tax Regime (FY 2025-26).
Old vs New Tax Regime Switcher & Tax Calculator (FY 2026-27 & FY 2027-28)
Compare tax liabilities side-by-side between Old and New Income Tax Regimes in India with automatic break-even deduction analysis and tax-savings verdicts.
HRA Exemption Calculator & Printable Rent Receipt PDF Generator
Calculate House Rent Allowance (HRA) tax exemption under Section 10(13A) and generate downloadable PDF rent receipts.
In-Hand Salary Calculator (FY 2026-27) & CTC Breakdown Engine
Calculate monthly net in-hand salary from annual CTC after PF, ESI, Professional Tax, and Income Tax deductions for FY 2026-27.
Developer Tools
Format, validate, and minify JSON, encode/decode Base64 strings, build Linux cron schedules, and inspect JWT tokens.
JSON Formatter & Validator
Format, validate, beautify, and minify JSON strings with live syntax error checking.
Base64 Encoder & Decoder
Encode plain text into Base64 format and decode Base64 strings back to readable text.
Cron Expression Generator & Explainer
Generate Linux cron schedule expressions visually with human-readable schedule explanations.
JWT Token Decoder & Inspector
Decode JSON Web Tokens (JWT) to inspect color-coded headers, payload claims, and expiration dates.
Free QR Code Generator
Generate customized, high-resolution QR codes for websites, WiFi networks, text messages, emails, and phone numbers. 100% private and client-side.
Secure Password & Passphrase Generator
Generate strong, unhackable passwords and memorable Diceware passphrases using cryptographically secure randomness. Includes entropy analysis and bulk generation.
Image Compressor & WebP Converter (100% Private In-Browser)
Compress PNG, JPEG, and WebP images by up to 90% directly in your browser without uploading files to any external server.
100% Free AI Background Remover & Transparent Cutout Studio
Remove image background online free with instant studio backdrops (Transparent, Pure White, Passport Blue, DSLR Blur) and 100% client-side privacy.
Client-Side Screen Recorder & Video Trimmer
Record your desktop screen, app windows, or browser tabs with microphone audio free online with 100% client-side WebRTC privacy.
AI Micro-Tools
Free AI-powered utilities for crafting ATS resume bullets, polishing corporate emails, and building Midjourney & DALL-E prompts.
AI Resume Bullet Point Generator
Generate metric-driven, ATS-friendly action-verb bullet points tailored to your job title.
AI Professional Email Polisher
Convert rough thoughts into polished corporate emails across professional, concise, and friendly tones.
AI Image Prompt Builder (Midjourney & DALL-E)
Build high-detail image prompts for Midjourney, DALL-E 3, and Stable Diffusion.