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Free Business Tools for India
Calculate GST, salary, profit, loans and shipping costs — and create GST invoices — with fast, simple tools built for Indian users.
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- 59free tools
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- 10plain-English guides
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Browse by category
Every tool, grouped by the job you need done.
- GST & TaxAdd or remove GST, split CGST/SGST/IGST and work out tax on invoices.11 tools →
- Business CalculatorsProfit, margin, markup and discount calculators for shops, traders and sellers.7 tools →
- Salary & HR CalculatorsCTC to in-hand salary, PF, gratuity and other payroll calculations.11 tools →
- Finance CalculatorsLoan EMI, SIP, FD, compound interest, ROI and working capital.10 tools →
- Logistics & Shipping CalculatorsVolumetric weight, chargeable weight and shipping cost calculators.5 tools →
- Invoice & Document GeneratorsCreate invoices, quotations, receipts and salary slips in your browser.9 tools →
- Education CalculatorsCGPA to percentage and attendance calculators for students.2 tools →
- Everyday Utility CalculatorsPercentage and age calculators for everyday questions.4 tools →
Most-used tools
- GST & TaxGST CalculatorAdd or remove GST at any rate and see the CGST, SGST or IGST split.Use calculator
- GST & TaxReverse GST CalculatorFind the price before GST from a final amount — or work out which GST rate was charged.Use calculator
- BusinessProfit CalculatorWork out net profit, margin and break-even price from cost, price and expenses.Use calculator
- BusinessProfit Margin CalculatorFind margin from cost and price, or the price you need for a target margin.Use calculator
- BusinessBreak-even CalculatorUnits and sales needed to cover fixed costs — or to reach a profit target.Use calculator
- FinanceBusiness Loan EMI CalculatorMonthly EMI, total interest and a year-wise repayment schedule for any loan.Use calculator
- Salary & HRCTC to In-Hand Salary CalculatorConvert annual CTC into monthly take-home pay after PF, professional tax and TDS.Use calculator
- Salary & HRSalary Hike & Increment CalculatorNew salary after a % increment, or the hike % between two salaries.Use calculator
- Salary & HRPF CalculatorMonthly EPF contributions (employee, employer, EPS) and a balance projection.Use calculator
Answers in three steps
- Pick a toolSearch or browse by category — GST, salary, pricing, loans, shipping or documents.
- Enter your numbersResults update as you type, in Indian format with lakh and crore.
- Understand & shareSee the formula and breakdown, then copy, print or share on WhatsApp.
GST & Tax
- GST CalculatorAdd or remove GST at any rate and see the CGST, SGST or IGST split.Use calculator
- Reverse GST CalculatorFind the price before GST from a final amount — or work out which GST rate was charged.Use calculator
- GST Inclusive CalculatorSplit a GST-inclusive price or MRP into taxable value and GST.Use calculator
- GST Exclusive CalculatorAdd GST to a pre-tax unit price and quantity to get the invoice total.Use calculator
- CGST, SGST & IGST CalculatorSplit GST into CGST + SGST/UTGST or IGST, side by side.Use calculator
- GST + Discount CalculatorApply a discount, then GST — see the taxable value, tax and final price.Use calculator
Business Calculators
- Profit CalculatorWork out net profit, margin and break-even price from cost, price and expenses.Use calculator
- Profit Margin CalculatorFind margin from cost and price, or the price you need for a target margin.Use calculator
- Discount CalculatorPrice after one or two discounts, or the discount % between two prices.Use calculator
- Markup CalculatorSet a selling price from cost + markup %, or find the markup on a price.Use calculator
- Break-even CalculatorUnits and sales needed to cover fixed costs — or to reach a profit target.Use calculator
- Commission CalculatorFlat or tiered sales commission, with fixed pay and TDS if applicable.Use calculator
Salary & HR Calculators
- CTC to In-Hand Salary CalculatorConvert annual CTC into monthly take-home pay after PF, professional tax and TDS.Use calculator
- Salary Hike & Increment CalculatorNew salary after a % increment, or the hike % between two salaries.Use calculator
- PF CalculatorMonthly EPF contributions (employee, employer, EPS) and a balance projection.Use calculator
- Gratuity CalculatorGratuity from last basic + DA and years of service, with eligibility checks.Use calculator
- Bonus CalculatorStatutory bonus (8.33%–20%) with salary ceilings, or a simple % bonus.Use calculator
- Overtime CalculatorHourly rate and overtime pay at double, 1.5× or normal rate.Use calculator
Finance Calculators
- Business Loan EMI CalculatorMonthly EMI, total interest and a year-wise repayment schedule for any loan.Use calculator
- ROI CalculatorReturn on investment in % and the annualised return (CAGR) over any period.Use calculator
- Working Capital CalculatorWorking capital, current ratio and quick ratio from your balance sheet.Use calculator
- SIP CalculatorProject the value of a monthly SIP, with an optional yearly step-up.Use calculator
- Compound Interest CalculatorMaturity value with yearly, quarterly or monthly compounding vs simple interest.Use calculator
- FD CalculatorFixed deposit maturity amount and interest with quarterly compounding.Use calculator
Logistics & Shipping Calculators
- Volumetric Weight CalculatorConvert box dimensions to volumetric weight and find the chargeable weight.Use calculator
- Courier Shipping Cost CalculatorEstimate a courier bill from weight, box size and your rate card slabs.Use calculator
- Freight CalculatorRoad freight cost per km, per tonne or per tonne-km, with extras.Use calculator
- Transport Cost CalculatorTrip cost from distance, mileage and fuel price, plus tolls and driver.Use calculator
- Truck Capacity CalculatorHow many boxes fit in a truck, by space and by payload weight.Use calculator
Invoice & Document Generators
- Invoice GeneratorCreate a GST tax invoice with HSN, CGST/SGST/IGST and totals in words.Create document
- Quotation GeneratorMake a price quotation with GST, validity date and terms, as a PDF.Create document
- Purchase Order GeneratorRaise a purchase order to a vendor with items, GST, delivery date and terms.Create document
- Receipt GeneratorIssue a payment receipt with amount in words, mode and reference.Create document
- Salary Slip GeneratorCreate a monthly payslip with earnings, deductions and net pay in words.Create document
- Delivery Challan GeneratorDelivery challan for job work, approval or branch transfer, as a PDF.Create document
Education Calculators
Everyday Utility Calculators
- Percentage CalculatorX% of a number, what % one number is of another, and % change.Use calculator
- Age CalculatorExact age in years, months and days on any date, plus next birthday.Use calculator
- Date Difference CalculatorDays, weeks, months and weekdays between any two dates.Use calculator
- Land Area ConverterConvert acres, hectares, sq ft, gaj, cents, guntha, marla and kanal.Use calculator
Latest from the blog
Rule changes and practical explainers, with worked rupee examples.
- Salary & HR
EPF Wage Ceiling Raised to ₹25,000: What Changes in Your Payslip
From 17 September 2026, PF is calculated on basic wages up to ₹25,000 instead of ₹15,000. Here's what that does to your PF deduction, your employer's pension share and your take-home pay.
· 5 min read
- Salary & HR
Gratuity Under the Labour Codes: Fixed-Term Staff and the 50% Wage Rule
The labour codes kept the 15/26 gratuity formula but changed who qualifies and which wages count. Two changes matter most: fixed-term staff qualify after one year, and allowances above half your pay are added back.
· 4 min read
- Salary & HR
₹12 LPA In-Hand Salary in FY 2026-27: A Line-by-Line Breakdown
A ₹12 lakh offer works out to roughly ₹91,900 a month in hand under the new tax regime — with zero income tax. Here's where the other ₹8,000 goes, and what 6 to 25 LPA look like.
· 4 min read
Business guides
Plain-English explanations with formulas and worked examples.
- GuideHow to Calculate GST: Formulas and Worked ExamplesThe two GST formulas every business needs, with CGST/SGST/IGST examples.
- GuideGST Inclusive vs Exclusive: What's the Difference?What inclusive and exclusive GST prices mean and how to convert between them.
- GuideHow to Calculate Profit Margin (and How It Differs From Markup)Margin formula, pricing for a target margin, and the margin vs markup trap.
- GuideCTC vs In-Hand Salary: Why Your Take-Home Is LowerWhat sits between your CTC and the salary credited to your account.
- GuideHow to Calculate Volumetric Weight for Courier and CargoThe volumetric weight formula, divisors, and how carriers pick the billed weight.
- GuideHow to Make a GST Invoice: Format, Rules and ExampleThe fields a GST tax invoice must show, numbering rules and a worked example.
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Why people use BizToolsIndia
Built for India
Indian number format, GST splits, PF, gratuity and new-regime income tax — not a foreign template.
Shows its working
Every tool explains the formula and walks through an example you can check by hand.
Fast on any phone
Lightweight pages that load quickly on mobile data. No app, no sign-up.
Private by design
Calculations and documents stay in your browser. We don't store what you type.
Free online calculators for Indian businesses and professionals
BizToolsIndia brings together the calculations that come up every day in an Indian business — in one fast, free place. Shopkeepers and traders use the GST Calculator to add or remove GST and split it into CGST and SGST or IGST. Accountants check back-calculations with the Reverse GST Calculator and verify a supplier's number with the GSTIN Validator. Freelancers and small businesses create a proper GST invoice, quotation or payment receipt as a PDF in minutes.
For pricing decisions, the Profit Margin Calculator, Markup Calculator and Break-even Calculator show exactly what you earn on each sale — and the difference between margin and markup that trips up many sellers.
Salary, PF and HR calculations
Employees comparing job offers use the CTC to In-Hand Salary Calculator to see real take-home pay after PF, professional tax and income tax under the new regime. HR teams and small employers calculate PF contributions, gratuity, statutory bonus and overtime, and issue monthly salary slips.
Loans, savings and shipping
Plan borrowing with the Business Loan EMI Calculator and compare savings with the SIP Calculator, FD Calculator and Compound Interest Calculator. Online sellers and logistics teams estimate volumetric weight and courier charges before booking a shipment.
Every tool shows its formula and a worked example, uses Indian number formatting, and works on any phone without an app or login. Where rules come from the government — GST rates, income-tax slabs, PF limits — the page shows when we last reviewed them and links to the official source.
Frequently asked questions
Are the tools on BizToolsIndia free?
Yes. Every calculator and document generator is free to use without signing up. Calculations run in your browser and the numbers you type are not stored.
Which GST rates do the GST calculators use?
The calculators list the current GST slabs from our central rate configuration — including 5%, 18% and 40% after the September 2025 rationalisation, special rates of 0.25% and 3%, and the older 12% and 28% slabs for past invoices. You can also enter any custom rate. Each GST page shows when rates were last reviewed.
How do I calculate in-hand salary from CTC?
Subtract the employer's PF, gratuity and variable pay from CTC to get gross salary, then deduct your PF, professional tax and income tax. The CTC to In-Hand Salary Calculator does each step for you under the new tax regime.
Can I create a GST invoice for free?
Yes. The GST Invoice Generator creates a tax invoice with HSN/SAC codes, CGST/SGST or IGST, a tax summary and the amount in words, and saves it as a PDF. Nothing is uploaded.
Is BizToolsIndia a government website?
No. BizToolsIndia is an independent website. Tax calculators link to the official sources we use and show when their rates were last reviewed.
How accurate are the calculators?
Each calculator uses the standard formula shown on its page and is covered by automated tests, including the worked examples we publish. Results are estimates for general information — for tax filings or legal decisions, confirm with an official source or a qualified professional.
Can I share a calculation on WhatsApp?
Yes. Use WhatsApp or Copy link under any result. The link opens the calculator with the same values filled in.