Calculators

Tools for aspect ratio calculations, FAR, and other practical utilities. Built to help designers, developers, and creators save time.

Free Online Calculators

Toolonic’s calculators make it easy to perform precise calculations for a wide range of tasks. From estimating buildable floor areas to working with ratios, all tools run in your browser, are completely free, and require no sign-up. New calculators are added regularly to save you time and effort.

RSD Calculator - Relative Standard Deviation & CV Calculator

Free online RSD Calculator to compute Relative Standard Deviation, Coefficient of Variation, variance, and mean instantly. Enter your data set or known mean and standard deviation to get accurate results with step-by-step working.

Free Online Tally Counter & Click Counter

Count anything with our free online tally counter. Perfect for inventory, events, or workouts. Features multiple counters, auto-save, keyboard shortcuts, and CSV export. No downloads required.

FAR Calculator: Calculate Floor Area Ratio Online

Determine the total buildable floor area of a property based on the site size and local zoning FAR limits. Ideal for architects, designers, and developers.

How It Works: Simply enter the site area and the maximum FAR value.

Aspect Ratio Calculator Online: Maintain Perfect Proportions

Quickly calculate and convert aspect ratios for images and videos.

How It Works: Enter the original width and height, along with a new dimension, and the tool instantly calculates the missing value.