Convert numbers to Roman numerals and vice versa instantly.
Calculate your exact age from birthdate instantly. Free online age calculator with years, months, days and detailed statistics.
Calculate aspect ratios instantly for videos, images, and screens. Free online ratio calculator with common presets and scaling dimensions.
Calculate your Blood Alcohol Content (BAC) instantly. Free online BAC calculator to estimate alcohol levels in your system based on drinks, weight, and time.
Encode or decode Base64 data instantly. Free online Base64 converter for developers with URL-safe and line-wrap options.
Check your blood pressure reading instantly. Free online BP calculator with health categories and personalized advice.
Calculate your Body Mass Index (BMI) instantly. Free online BMI calculator with health categories and weight status.