What Your Result Means
Permille is a precision-friendly way to represent ratios out of 1,000. Use it when percent feels too coarse or when per-thousand language is standard for your topic.
Calculator
Calculate Permille Instantly
Calculate any value in permille (‰), then see the result as percent, decimal, ratio, and a 1,000-square visual.
Formula: permille = (part / whole) * 1000
Permille Calculator
Enter your values to calculate and visualize the result.
Animated visualization of per mille (out of one thousand).
FAQ
- What does permille mean?
Permille means per thousand. A value of 25‰ means 25 out of 1,000, which is 2.5%. - When is permille better than percent?
Permille works better when changes are small but still important, like salinity, gradients, rates, and advertising metrics.