Permille Tools + Data Stories

Ratios Out Of 1,000, Explained Visually

Permille helps you describe small but meaningful ratios with clarity. This site combines calculators, context-rich answer pages, and visual stories that provide perspective and illustrate the power of visualization per mille.

Latest Story

Helium: Who Produces It, Who Uses It

A two-part animated permille series that flips from helium-producing countries to the countries and economies showing the largest import-demand signal for rare gases that include helium.

Technology 2026-04-29

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Permille Calculators + Visuals + Answers

Find the tools to make your calculations, the data stories told at a glance, and common answers to related permille questions.

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1. Calculators

Primary tools, formulas, meaning, and interpretation pages. Most day-to-day permille intent lands here.

View calculators
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2. Visual Stories

Curated, current, and interesting out-of-1,000 explainers. Browse, share, and learn.

Explore stories
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3. Answer Pages

Specific query pages with clear answers, worked steps, and direct calculation context.

Browse answers

Permille Calculator with Classic 1,000-Square Visual

Share exact calculations with a copy and paste URL and export the visual as graphic.

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One in

1 in 1,000

Animated visualization of per mille (out of one thousand).

Out-Of-1,000 Category Visualizer

Use `items`, `mode`, `duration`, and `autoplay` query parameters to generate a shareable visual answer page.

Counts are normalized to 1,000 automatically. Reset hides symbols but keeps current play/pause state.

Out of 1,000 visualization

Launch Calculator Pages

Calculators for permille, slope, per thousands, and converters.

Visual Story Launch Set

Permille stories are a fun way to visualize information in a world of 1,000 things. These are the top and recent stories.

Health 2026-03-22

Who Has Safe Drinking Water Out Of 1,000 People?

On World Water Day let's reflect on water access. This 1,000-person view of global drinking-water access shows how many people have safely managed service and how many still rely on basic, limited, unimproved, or surface water sources.

Dedicated Answer Pages

Common questions and answers with added context.