SSARMAYA LABS
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SARMAYA LABS / CALCULATOR STUDIO

Free online calculators

Use free online calculators for percentages, discounts, profit margins, GST and loan EMIs. Enter your values and get clear, browser-based results.

Explore the tools Explore all studios
Focused utilitiesOne clear task, with a straightforward workspace.
Browser-first toolsUse the published tools without installing desktop software.
Clear instructionsCheck supported formats and limits before you process a file.

Find the right tool for the task

Search Calculator Studio tools, choose a focused workspace and get straight to work.

01READY TO USE

Percentage Calculator

Calculate a percentage of a value, find what percent a part is of a whole, and measure percentage increase or decrease.

Open tool
02READY TO USE

Discount Calculator

Calculate a sale price and total savings after one or two successive percentage discounts, or find the discount from two prices.

Open tool
03READY TO USE

Profit Margin Calculator

Calculate gross profit, gross margin and markup, and estimate a selling price for a target margin or markup.

Open tool
04READY TO USE

GST Calculator

Add or remove GST from a price and display the taxable value, total tax, CGST and SGST split or IGST.

Open tool
05READY TO USE

EMI Calculator

Estimate a monthly loan instalment, total interest and repayment amount using a standard reducing-balance EMI formula.

Open tool

More Calculator tools are coming soon

15 more calculator tools are planned. Each will be published only after its processing, limits and quality checks are ready.

COMING SOONCALCULATORS AND CONVERTERS

Age Calculator

Calculate age in years, months and days from a date of birth.

COMING SOONCALCULATORS AND CONVERTERS

Date Difference Calculator

Calculate the number of days, weeks and months between two dates.

COMING SOONCALCULATORS AND CONVERTERS

Time Duration Calculator

Calculate elapsed time between two clock times or date-time values.

COMING SOONCALCULATORS AND CONVERTERS

Unit Converter

Convert common measurement units across supported categories from one value to another.

COMING SOONCALCULATORS AND CONVERTERS

Temperature Converter

Convert temperatures between Celsius, Fahrenheit and Kelvin.

COMING SOONCALCULATORS AND CONVERTERS

Length Converter

Convert length measurements such as millimetres, centimetres, metres, inches and feet.

COMING SOONCALCULATORS AND CONVERTERS

Weight Converter

Convert mass and weight measurements such as grams, kilograms, pounds and ounces.

COMING SOONCALCULATORS AND CONVERTERS

Area Converter

Convert area measurements such as square metres, square feet, acres and hectares.

COMING SOONCALCULATORS AND CONVERTERS

Volume Converter

Convert volume measurements such as litres, millilitres, gallons and cubic units.

COMING SOONCALCULATORS AND CONVERTERS

Data Storage Converter

Convert bytes, kilobytes, megabytes, gigabytes and other data storage units.

COMING SOONCALCULATORS AND CONVERTERS

Number Base Converter

Convert integers between binary, decimal, hexadecimal and other supported bases.

COMING SOONCALCULATORS AND CONVERTERS

Fraction Calculator

Add, subtract, multiply or divide fractions and simplify the resulting value.

COMING SOONCALCULATORS AND CONVERTERS

Scientific Calculator

Evaluate scientific expressions with common trigonometric, logarithmic and power functions.

COMING SOONCALCULATORS AND CONVERTERS

Average Calculator

Calculate the mean of a list of numeric values and review the total and count.

COMING SOONCALCULATORS AND CONVERTERS

Ratio Calculator

Simplify ratios and calculate equivalent ratio values from known quantities.

THE CALCULATOR STUDIO WORKFLOW

Keep the simple tasks simple.

Explore a few ways this focused workspace helps you move from the task to a finished result.

01 / PERCENTAGES AND DISCOUNTS

Answer common percentage questions quickly.

Find percentages, calculate percentage change and compare sale prices with clear steps rather than a bare number.

  • Find a percentage of a value
  • Calculate successive discounts
  • See the savings and effective rate
Explore Calculator Studio tools
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02 / BUSINESS PRICE CHECKS

See the difference between margin and markup.

Calculate gross profit from cost and selling price, estimate a target selling price and see the arithmetic behind the result.

  • Calculate gross profit and margin
  • Compare markup with margin
  • Estimate a target selling price
Explore Calculator Studio tools
{"name": "Sarmaya","ready": true,"tools": 19}VALID JSON
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03 / TAX AND LOAN ESTIMATES

Make tax and repayment figures easier to review.

Add or remove GST with the relevant tax split, or estimate a monthly reducing-balance EMI from loan details.

  • Calculate GST-inclusive and exclusive amounts
  • Display CGST plus SGST or IGST
  • Estimate EMI and total interest
Explore Calculator Studio tools
Your file, ready to workInput · settings · outputREADY
FREE ONLINE CALCULATORS

Free calculators for prices, business and everyday maths

Calculate percentages, compare discounts, review gross margins, work out GST amounts and estimate a loan instalment in one focused browser workspace.

  1. Choose a calculation

    Open the calculator that matches the price, percentage, tax or loan question you need to solve.

  2. Enter your values

    Fill in the relevant amounts, rates and periods. Results update locally in your browser.

  3. Check the formula and result

    Review the figures and explanatory notes before using them in a quote, estimate or comparison.

The first Calculator Studio tools cover percentage questions, sale prices, business margin and markup, GST arithmetic and standard reducing-balance EMI estimates. Each result includes a clear explanation of the calculation and its limits.

Explore free online tools

  • Free percentage calculatorCalculate a percentage of a value, find what percent a part is of a whole, and measure percentage increase or decrease.
  • Free discount calculatorCalculate a sale price and total savings after one or two successive percentage discounts, or find the discount from two prices.
  • Free profit margin calculatorCalculate gross profit, gross margin and markup, and estimate a selling price for a target margin or markup.
  • Free gst calculatorAdd or remove GST from a price and display the taxable value, total tax, CGST and SGST split or IGST.
  • Free emi calculatorEstimate a monthly loan instalment, total interest and repayment amount using a standard reducing-balance EMI formula.
01 / Choose a toolOpen the utility that matches the task you need to complete.
02 / Work in your browserUse a focused interface without installing a desktop application.
03 / Get your resultPreview, copy or download the result when the tool supports it.