convertimate Slope

Percent grade to per mille

Type a value in % to get it in ‰ instantly.

100‰

That's about the same as a steep road sign. Over a kilometer on the map that climbs about 100 meters.

What it means

How steep is that?

Percent grade is rise over horizontal run. Road signs use the same definition, so a 10% hill climbs 10 m over 100 m of map distance, not of road.

The math

How to convert % to ‰

To convert percent grade to per mille, multiply by 10.

Example: 10 % × 10 = 100 ‰.

In the other direction, 1 ‰ = 0.1 %.

Every unit

Your slope in every unit

Tables

% to ‰ conversion table

% to ‰ conversion table
%‰
0.5 %5 ‰
1 %10 ‰
2 %20 ‰
3 %30 ‰
5 %50 ‰
8 %80 ‰
10 %100 ‰
15 %150 ‰
20 %200 ‰
25 %250 ‰
45 %450 ‰
100 %1,000 ‰
‰ to % conversion table
‰ to % conversion table
‰%
0.5 ‰0.05 %
1 ‰0.1 %
2 ‰0.2 %
3 ‰0.3 %
5 ‰0.5 %
8 ‰0.8 %
10 ‰1 %
15 ‰1.5 %
20 ‰2 %
25 ‰2.5 %
45 ‰4.5 %
100 ‰10 %

Quick answers

Quick answers

How many ‰ is 1 %?
1 % is 10 ‰.
How many ‰ is 10 %?
10 % is 100 ‰.

The units

About these units

Percent grade (%)

Rise over run as a percentage, the measure on road signs.

Per mille (‰)

Thousandths, used for railway gradients and drainage falls.

Learn more about slope units

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