ratio.

Find a tool

Browse all tools and categories ↗
Tools
CALCULATORS & CONVERTERS

Gardening

Estimate watering quantities and resource use from entered garden dimensions and measured conditions.

Browse by use

A tool can belong to several categories. All tools lists each calculator once.

Earth Science

Solar Elevation Azimuth and Shadow Calculator

Gardening · Energy & Environment · Design & Drawing · Science & Lab

Estimate geometric sun position and a vertical object’s level-ground shadow from entered date, clock time and coordinates.

Open calculator ↗

Gardening

Irrigation Water and Runtime Calculator

Gardening · Construction & DIY · Science & Lab

Estimate irrigation volume and runtime from area, entered target water depth, effective rain, application efficiency and measured flow.

Open calculator ↗