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Free Online Calculators
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India's & USA's most-used free tools for financial planning, tax calculations, unit conversions and developer utilities — all in one place.

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Quick access to the most-used free calculators

📈 SIP Calculator 🏠 EMI Calculator 🏡 Mortgage Calculator 📊 Income Tax (India) ⚖️ BMI Calculator % Percentage Calculator 🧾 GST Calculator 📝 Word Counter

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Financial Calculators & Investment Tools

SIP, EMI, FD, PPF, CAGR, HRA, GST and income tax calculators — built for Indian investors.

26 Tools

Calculate SIP returns with step-up & inflation adjustment

ChartsStep-Up SIPInflation

Systematic Withdrawal Plan for retirement income

Corpus TrackInflationStep-Up

Loan EMI with full amortization schedule & charts

AmortizationInterest SplitAll Loans

Fixed deposit returns with compound & simple interest

Multiple BanksQuarterlyMaturity

Compound Interest Calculator

Maturity & interest with monthly contributions and any frequency

Monthly SIPAny FrequencyYear-wise Chart

Recurring deposit maturity & interest with quarterly compounding

Quarterly CompMonth-wiseBank & Post Office

Simple Interest Calculator

Simple interest, total amount & year-wise growth using P×R×T/100

SI FormulaYear-wiseQuick

Lumpsum Calculator

One-time mutual fund investment maturity & estimated returns

One-TimeWealth MultipleGrowth Chart

Advanced Loan Calculator

Loan analysis with prepayment & variable rates

PrepaymentVariable RatesSchedule

Home Loan Eligibility

Maximum home loan you qualify for using the FOIR method

FOIR MethodEligible EMIIncome Split

Income Tax Calculator

Old vs New regime with all deductions for FY 2024-25

New/Old RegimeAll DeductionsTax Compare

15-year PPF returns & tax-free maturity amount

15-Yr Lock-inTax-FreePartial Withdrawal

CGST, SGST, IGST for 5%, 12%, 18% and 28% slabs

All GST RatesCGST/SGST/IGSTInc/Excl

NPS Vatsalya Calculator

Child pension planning under NPS Vatsalya scheme

Child PensionTax BenefitsLong-term

Retirement Calculator

Full corpus planning with inflation & SIP requirement

Corpus PlanningInflation AdjSIP Req

CAGR Calculator

Compound Annual Growth Rate for mutual funds & stocks

Year-wise ChartAbs ReturnsMF/Stock CAGR

HRA Exemption Calculator

HRA tax exemption under Section 10(13A) of Income Tax Act

Old Tax RegimeMetro/Non-MetroTax Savings

CTC to In-Hand Salary

Get exact take-home salary from CTC with PF & tax breakdown

New/Old RegimePF DeductionMonthly Breakup

In-Hand Salary Calculator

Monthly take-home pay from CTC with old vs new regime — FY 2025-26

FY 2025-26Regime CompareMonthly Net

Employee Provident Fund maturity corpus at 8.25% interest

Year-wise GrowthEmployer MatchTax-Free

Gratuity Calculator

Calculate gratuity under Payment of Gratuity Act 1972

Official FormulaTax-Free Limit5-Year Rule

Sukanya Samriddhi Yojana returns at 8.2% — EEE tax status

8.2% InterestEEE Status80C Deduction

Inflation Calculator

Purchasing power & future value with India CPI data

Past/Future ValueCustom RateYear-wise Chart

Stamp Duty Calculator

Property stamp duty for 14 Indian states — men & women rates

14 StatesGender RatesRegistration Charges

Tax deducted at source for 194A, 194C, 194J, 194I & all sections

All SectionsNo-PAN RateNet Payable

Rent Receipt Generator

Generate monthly rent receipts for HRA claims — download all months as PDF

Monthly PDFLandlord PANHRA Ready

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USA Finance & Tax Tools

Federal income tax, mortgage calculator, tip splitter, credit card payoff, GPA and sales tax for all 50 states.

9 Tools

Split restaurant bills & calculate tips for any group size

Bill SplittingCustom %Per Person Cost

US Income Tax 2024

2024 federal tax with all filing statuses & deductions

2024 Tax BracketsAll Filing StatusTax Savings

Mortgage Calculator

Monthly payment with PMI, property tax, HOA & amortization

PMI Auto-detectHOA & TaxFull Amortization

Credit Card Payoff

Payoff date, total interest saved & avalanche vs snowball

Payoff TimelineInterest SavedDebt Methods

4.0 scale GPA with letter grades, credits & Latin honors

4.0 ScaleLetter GradesLatin Honors

Sales Tax Calculator

Calculate sales tax for all 50 US states with 2024 rates

All 50 StatesReverse TaxPre/Post-Tax Price

401k Calculator

Project 401k corpus with employer match & compound growth

Employer MatchYear-wise Chart2024 Limits

Student Loan Payoff

Payoff timeline, interest saved & extra payment impact

Payoff DateInterest SavedAmortization

Rent vs Buy Calculator

Net worth comparison — should you rent or buy a home?

Break-even PointNet Worth ChartTrue Cost

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Developer & Text Tools

JSON formatter, regex tester, Base64 encoder, URL encoder, MD5 hash generator and word counter.

13 Tools

JSON Formatter & Validator

Format, validate, minify JSON with syntax highlighting

Syntax HighlightError DetectionMinify/Beautify

Real-time regex matching with group capture & pattern library

Live TestingGroup CapturePattern Library

Base64 Encoder / Decoder

Encode & decode text and files to Base64 format

File UploadDrag & DropImage Preview

URL Encoder / Decoder

Encode & decode URLs for safe web transmission

Safe EncodingValidationBatch Mode

MD5 Hash Generator

Generate MD5, SHA-1, SHA-256 hashes & verify integrity

Multiple AlgosFile HashHash Compare

Word Counter & Text Analyzer

Count words, characters, reading time & keyword density

Real-time CountKeyword DensityReading Time

Decode & inspect JSON Web Tokens — header, claims, expiry

Header & PayloadExpiry CheckSample Tokens

MD5, SHA-1, SHA-256, SHA-512 hashes with verify tool

5 AlgorithmsReal-time HashHash Verify

Color Converter

HEX ↔ RGB ↔ HSL ↔ HSV ↔ CMYK with live preview

5 FormatsColor PickerContrast Check

UUID & ULID Generator

Generate UUID v4, v1, ULID and NanoID — bulk up to 100

UUID v4/v1ULIDBulk Generate

Build cron expressions visually with next run times

Visual BuilderNext 10 RunsPresets

Compare two texts side by side with line-by-line diff

Side-by-SideUnified DiffLCS Algorithm

Interview Questions

Python, JavaScript, Java & SQL interview Q&A — theory, code examples, real-world & common mistakes

6 Answer Sections5 LevelsReal Code

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Converters & Utilities

Unit converter, live currency rates, timezone converter, Unix timestamp and WebP image converter.

7 Tools

Length, weight, temperature, area, volume and 50+ more units

50+ CategoriesReal-timeFormulas Shown

Currency Converter

Live exchange rates for 170+ world currencies

Live Rates170+ CurrenciesHistorical Data

Timezone Converter

Convert time between any two global time zones with DST

DST SupportMeeting PlannerWorld Clock

Unix Timestamp Converter

Convert Unix timestamps to human-readable dates & vice versa

Millisecond SupportCustom FormatsBatch Convert

Image Compressor

Bulk compress JPG, PNG & WebP — up to 90% smaller, no upload

Bulk CompressZIP DownloadNo Upload

WebP Image Converter

Convert PNG/JPEG images to WebP format client-side

Client-Side OnlyBatch ConvertQuality Control

Social Media Image Resizer

Resize images for Instagram, YouTube, LinkedIn & 8 platforms

8 PlatformsDrag-to-CropNo Upload

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General Calculators & Generators

Password generator, QR code maker, BMI, age calculator, percentage and number-to-words converter.

14 Tools

Password Generator

Cryptographically secure passwords with strength meter & rules

Custom RulesStrength MeterBulk Generate

QR Code Generator

Create QR codes for URLs, WiFi, contacts, text & more

Multiple TypesCustom DesignHigh Resolution

Barcode Generator

Professional UPC, EAN, Code 128 and 15+ barcode formats

15+ FormatsPrint QualityDownload PNG

Exact age in years, months, days with zodiac sign & birthday

Precise CalculationNext BirthdayZodiac Sign

Date Calculator

Differences, business days, add/subtract dates & holidays

Business DaysHoliday SupportWeekday Finder

Percentage Calculator

5 calculators: find %, change, increase, decrease & more

5 Calculator Modes% ChangeIncrease/Decrease

Body Mass Index with healthy weight range & risk category

BMI CategoryHealthy RangeMetric & Imperial

Calorie Calculator

Daily calorie needs, BMR & TDEE with goal-based targets

BMR & TDEEWeight GoalsMifflin-St Jeor

Pregnancy Due Date Calculator

Estimate delivery date, pregnancy week & trimester

Due DateWeek & TrimesterMilestones

Ideal Weight Calculator

Ideal body weight via Devine, Robinson, Miller & Hamwi formulas

4 FormulasBMI RangeBy Height

Water Intake Calculator

Daily water needs in litres & glasses by weight & activity

Litres & GlassesActivityClimate

Discount Calculator

Sale price, savings & stacked discounts with optional tax

Stacked DiscountsTax OptionSavings %

Salary Hike Calculator

Increment percentage & new salary from a hike or two figures

Hike %New SalaryTwo Modes

Number to Words Converter

Convert numbers to English words — Indian format (Lakhs, Crores)

Indian FormatCheque WritingLive Preview

Why Choose FreeBytes.in?

Everything you need, nothing you don't.

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Instant Results

All calculations happen in real-time in your browser. No server processing, no waiting.

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100% Free & Private

No account, no subscription, no data stored on our servers. Your inputs stay on your device.

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Mobile Friendly

Every tool is fully responsive and works flawlessly on phones, tablets and desktops.

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India & USA Focused

Dedicated tools for Indian users (GST, HRA, SIP) and US users (Tax, Mortgage, GPA).

Free Financial Calculators for India

FreeBytes.in provides a complete suite of free financial calculators for Indian users. Our SIP calculator helps you plan mutual fund investments with step-up and inflation adjustments. The EMI calculator covers home loans, car loans and personal loans with full amortization tables.

Plan your taxes with our income tax calculator (Old vs New regime comparison), calculate GST for any product or service, and find your HRA exemption under Section 10(13A). All tools follow the latest RBI and Income Tax Department guidelines for FY 2024-25.

Popular India tools: PPF Calculator · FD Calculator · CAGR Calculator · SWP Calculator

Free Online Calculators for USA Users

Our USA-specific tools include a mortgage calculator with automatic PMI detection, property tax and HOA costs with a full amortization schedule. The US income tax calculator covers all 2024 federal tax brackets for Single, MFJ, MFS and Head of Household filers.

Use the credit card payoff calculator to find your debt-free date, or compare avalanche vs snowball methods. The sales tax calculator covers all 50 US states with current 2024 rates, and supports reverse tax calculation.

Popular USA tools: Tip Calculator · GPA Calculator · Sales Tax by State