1. Calculators
Primary tools, formulas, meaning, and interpretation pages. Most day-to-day permille intent lands here.
View calculatorsPermille Tools + Data Stories
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
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.
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Find the tools to make your calculations, the data stories told at a glance, and common answers to related permille questions.
Primary tools, formulas, meaning, and interpretation pages. Most day-to-day permille intent lands here.
View calculatorsCurated, current, and interesting out-of-1,000 explainers. Browse, share, and learn.
Explore storiesSpecific query pages with clear answers, worked steps, and direct calculation context.
Browse answersShare exact calculations with a copy and paste URL and export the visual as graphic.
Animated visualization of per mille (out of one thousand).
Use `items`, `mode`, `duration`, and `autoplay` query parameters to generate a shareable visual answer page.
Calculators for permille, slope, per thousands, and converters.
Core calculator for any x of y to permille.
Apply a signed permille rate to a base value.
Step-by-step conversion from ‰ to %.
Step-by-step conversion from % to ‰.
Finance-focused converter for bps <-> ‰.
Concentration and quality-control conversions.
Marketing CPM calculator.
Permille slope and grade converter.
Find rise from slope and run.
Unit economics in per-thousand terms.
Always apply an increase in permille.
Always apply a decrease in permille.
Signed percent change with visual comparison.
Always apply a percent increase.
Always apply a percent decrease.
Convert incline percent to angle (degrees).
Treadmill incline % to degrees with training reference table.
Convert scientific notation decimals to permille.
Permille stories are a fun way to visualize information in a world of 1,000 things. These are the top and recent stories.
A readable education profile using permille categories.
A sector view of global freshwater withdrawals.
Sector contributions to greenhouse gas emissions, expressed in a 1,000-unit frame.
A broad language-family map expressed as 1,000 people.
An at-a-glance share of traffic-related deaths in a normalized 1,000 frame.
A 1,000-barrel view of the countries that dominated crude oil and lease condensate extraction in a global snapshot.
A 1,000-tile count of how often each digit 0 to 9 appears in the first 1,000 decimal digits of pi.
A fun 1,000-calorie visual split of apple pie macronutrients using USDA nutrient data and standard 9/4/4 energy factors.
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.
A Canada-specific 1,000-home view of how many households rely on private-well groundwater as their main water source.
Resource recycling: A 1,000-kilogram view of the reported gold concentration in incinerated sewage sludge ash at Japan's Suwa facility.
A 1,000-home view of how many U.S. housing units are renter-occupied, owner-occupied, and vacant.
Common questions and answers with added context.
1,000‰ equals 100%, which represents the whole amount.
15% equals 150‰ with a direct multiply-by-10 conversion.
A 12% incline is about 6.8428 degrees.
3,500 ppm equals 3.5‰, with percent and decimal checks.
At a $12 CPM and 250,000 impressions, total cost is $3,000.
A 22‰ slope over 900 m gives a rise of 19.8 meters.