Essentials Calculators
The everyday math you need on demand: percentage change, ratios, averages, and unit conversions.
Tools in this category
Percentage Increase Calculator
Instantly calculate % increase between two numbers.
Average Calculator
Mean, median, mode, and range for any list of numbers.
Ratio Calculator
Simplify, scale, and compare ratios instantly.
The math you run a dozen times a week
Percentages and ratios aren't exotic — they're what half of all business questions eventually reduce to. "Up how much from last month?" "What's our margin after that discount?" "Ratio of new to returning?" These tools keep it honest: clear formulas, no padding, answer in one look.