Utility
Unit Converter
Convert common length, weight and temperature values with clear unit labels.
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Browse focused calculator pages with formulas, examples, assumptions and clear limitations.
Education
Grade Percentage Calculator
Convert obtained marks and total marks into a percentage with validation for impossible scores.
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Generic Tax Rate Calculator
Add a user-supplied tax rate to an amount or remove an included percentage rate from a total.
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Profit Margin Calculator
Calculate gross profit and profit margin from cost price and selling price.
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Loan EMI Calculator
Estimate a fixed monthly loan payment from principal, annual interest rate and repayment term.
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Percentage Calculator
Calculate a percentage of a number, percentage change, or what percentage one value is of another.
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