Toolist

Rekenhulpen en Converters

Handige tools voor wiskunde, informatica-conversies en financiën.

40 tools SEO-first pages Minimal client JS

Rekenhulpen

Percentage Calculator Calculate X percent of a value instantly.
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Percentage Change Calculator Calculate increase or decrease percentage between two numbers.
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Circle Calculator Calculate diameter, circumference, and area from radius.
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BMI Calculator Calculate body mass index from weight and height.
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GCD & LCM Calculator Find greatest common divisor and least common multiple for two integers.
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Prime Number Checker Check if a number is prime and see basic factors.
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Quadratic Equation Solver Solve ax² + bx + c = 0 and view discriminant and roots.
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Discount Calculator Calculate discount amount and final price.
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VAT / Sales Tax Calculator Calculate net, tax, and gross values.
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Loan Payment Calculator Estimate monthly loan payments and total interest.
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Compound Interest Calculator Calculate future value with compound interest.
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Savings Goal Calculator Estimate monthly savings needed to reach a target.
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Break-Even Calculator Calculate break-even units and revenue.
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Age Calculator Calculate age from date of birth.
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Date Difference Calculator Find the difference between two dates.
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Tip Calculator Calculate tip amount and split bill per person.
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ROI Calculator Calculate return on investment percentage.
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Profit Margin Calculator Calculate profit and margin from revenue and cost.
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Markup Calculator Calculate selling price from cost and markup percentage.
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Hourly to Salary Calculator Convert hourly pay to weekly, monthly, and annual salary.
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Converters

Binary to Decimal Converter Convert binary numbers to decimal values.
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Decimal to Binary Converter Convert decimal numbers into binary representation.
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Hex to Decimal Converter Convert hexadecimal values to decimal.
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Decimal to Hex Converter Convert decimal values to hexadecimal.
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Text to Base64 Encoder Encode plain text to Base64.
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Base64 to Text Decoder Decode Base64 into plain text.
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Unix Timestamp Converter Convert Unix timestamps to UTC and local date/time.
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Temperature Converter Convert between Celsius, Fahrenheit, and Kelvin.
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Length Converter Convert between mm, cm, m, km, in, ft, yd, and mi.
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Weight Converter Convert between mg, g, kg, oz, and lb.
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Speed Converter Convert between km/h, mph, m/s, and knots.
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URL Encoder Encode text for safe use in URLs.
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URL Decoder Decode percent-encoded URL text.
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Formatter (Formatting)

JSON Formatter & Validator Format and validate JSON in the browser.
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JSON Minifier Minify JSON by removing unnecessary whitespace.
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Word Counter Count words, characters, lines, and reading time.
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Generators

UUID Generator Generate one or more UUID v4 identifiers.
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SHA-256 Hash Generator Generate a SHA-256 hash for text input.
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Slug Generator Convert text into SEO-friendly URL slugs.
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Password Generator Generate secure random passwords in the browser.
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