eGigFree online calculators
Every calculator eGig offers, in one place. They are free, with no sign-up and nothing to install.
Salary and pay
In-Hand Salary CalculatorTurn your CTC into monthly take-home pay after PF, professional tax and income tax, under the new or old regime for FY 2026-27.Salary Hike Calculator: New CTC and Hike PercentageWork out your new CTC from a hike percentage, or the hike percentage from an offer.HRA Exemption CalculatorWork out how much of your house rent allowance is tax-free under the old regime, metro or non-metro.EPF / PF CalculatorProject your provident fund balance at retirement from your basic pay, contributions and the EPF interest rate.Gratuity CalculatorEstimate the gratuity you get when you leave a job, from your last basic pay and years of service.Notice Period & Last Working Day CalculatorFind your last working day from your resignation date, and what a notice buyout would cost.
Tax
GST CalculatorAdd GST to a price or take it out of a GST-inclusive amount, with the CGST, SGST and IGST split at the 2025 rates.Freelancer Income Tax EstimatorA rough old-vs-new regime tax estimate for freelance/professional income under presumptive taxation (Sec 44ADA).TDS Calculator for FreelancersSee how much TDS a client should deduct from your fees, what reaches your bank, and when no TDS applies.
Business and money
EMI Calculator: Monthly Payment and Yearly ScheduleWork out your loan EMI, total interest and a year-by-year schedule, with an optional processing fee.Margin and Markup Calculator with GSTWork out margin, markup, selling price and price with GST, from your cost.Break-Even Calculator for a Small BusinessFind how many units you must sell to cover your costs, and how many to reach your target profit.Startup Runway CalculatorSee how many months of cash you have left at your current burn rate, and what changes if hiring or revenue shifts.Late Payment Interest Calculator (MSME)Calculate the interest owed when a client pays past the 45-day MSME Act limit.
Freelance rates
Freelance Rate CalculatorTurn a monthly income goal into an hourly or per-project rate, accounting for non-billable time and expenses.Project Quote CalculatorBuild a defensible fixed-price quote from estimated hours, your rate, a complexity buffer and revision rounds.Freelancer vs Full-Time Hire — Cost CalculatorCompare the true cost of hiring a freelancer for a project against a full-time employee, including overheads.
Construction and engineering
Concrete Calculator: Cement, Sand and AggregateWork out cement bags, sand and aggregate for any slab, footing or column, in m³, cft and brass, for M10 to M25.Brick Calculator: Bricks, Cement and Sand for a WallCount the bricks, cement bags and sand for a wall, in feet or metres, for modular, traditional or custom brick sizes.Steel Weight Calculator: TMT Bars in kgWork out the weight of TMT bars by diameter and length with the D²/162 rule, and the weight of steel plates.Plaster Calculator: Cement and SandWork out cement bags and sand for wall and ceiling plaster, by area, thickness and mix.Tile Calculator: Tiles and Boxes for a RoomWork out how many tiles and boxes to buy for a floor, with an allowance for cuts and breakage.Paint Calculator: Litres for a RoomWork out how many litres of paint a room needs, by size, coats and the coverage on your tin.Electrical Load Calculator for a HomeAdd up your appliances to see connected load, likely running load, current and monthly units.Ohm’s Law Calculator: Volts, Amps, Ohms and WattsEnter any two of voltage, current, resistance and power to work out the other two.Unit Converter: Feet, Guntha, Brass, kg and MoreConvert length, area, volume, weight, pressure, temperature, power and speed, including guntha, gaj, acre and brass.
Exams and everyday
Percentage Calculator: Marks, Change and DiscountsWork out marks percentage, a percent of a number, a percent change, and a percent added or taken off.CGPA to Percentage Calculator: CBSE, SPPU, Mumbai, VTUConvert CGPA to percentage by the formulas commonly quoted, side by side, with a clear note on what your university decides.Age Calculator by Date of Birth, with Exam Age LimitSee your exact age on any date, with a check against an exam or job age limit.
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Questions people ask
Are these calculators free?
Yes. They are free to use with no sign-up and no limit on how often you use them.
How accurate are they?
They use the published formula or rule named on each page, and each page says what it assumes. Treat the result as a good estimate, because your own employer, contractor or tax adviser may have details the calculator cannot see.
Do tax rules stay the same?
No. Tax rates and limits change, often with each budget. Before you file or sign anything based on a result, check the current rule on the official site or with a chartered accountant.