Fast, Free & Accurate Online Utilities
Instant financial calculations, unit conversions, and developer tools designed for speed and simplicity.
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BMI Calculator
Body Mass Index with healthy weight range, BMR, TDEE, and body fat percentage.
Compound Interest Calculator
See how savings grow with regular contributions over time.
Percentage Calculator
What is X% of Y? Change, increase, decrease, and difference.
🇬🇧 UK Salary Calculator
Estimated take-home pay after Income Tax and NI — 2026/27.
🇬🇧 UK VAT Calculator
Add or remove UK VAT at 20%, 5%, or any custom rate.
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