🔢 For each unit 📋 According to ✉️ By method

per

∞ 1.0

For each thing to show a rate like time or person

adposition
/pɜr/

: por

We have one room available, and it's $1,000 per night.
per year
per capita
per day

A billion a day, Three per person per day.

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Examples

Usually, the use of 4 hours or more per night can give symptom relief.

Academic text (2011)
Any kind of Google Adwords, they ask you to pay per click typically.

Tom Ferry
A billion a day, Three per person per day.

Brain Blaze
You deliver five books per year.

Scared to Death (1980)
The most common size was 100 cards per box, although many were smaller or larger.

Academic text (2008)
Questions included the number of cigarettes smoked per day and the name of the brand.

Academic text (2011)
And this is the amount of carbon emission per unit GDP.
Most people here live on $2 per day, and a concrete block costs 45 cents.

Academic text (2011)
It has the most accessories per gun in the industry.

Shawn Ryan Show
The speed limit is 60 miles per hour, which means you must drive at that pace.

Synonyms

for

vsper

627 1.0

Showing a rate or amount per unit, for example per hour

is specific to each single unit within a rate

per capita

vsper

68 3.5

For each person in a group

applies to any unit, not only people

Idioms

per se

Formal

112 7.5

By itself, without considering other things

per annum

Formal

7 4.2

Each year, often used when talking about money amounts

Compounds

per year

184 1.0

How often something happens in one year, often for an amount of money

miles per hour

142 1.7

A measure of speed showing how many miles you travel in one hour

per capita

68 3.5

For each person in a group

miles per gallon

15 2.7

How far a car can travel on one gallon of fuel

per diem

Specialized

14 6.4

Money paid each day to cover travel expenses

per capita income

Specialized

11 4.1

Average amount of money each person gets in a place during a year

kilometers per hour

8 2.4

The number of kilometers you travel in one hour

pounds per square inch

Specialized

8 3.4

A unit that measures pressure equal to one pound of force on one square inch

per household

7 2.5

For each home as an amount or rate

beats per minute

Specialized

4 2.7

Number of times the heart beats in one minute to measure pulse

kilometers per second

4 4.1

A measure of speed that shows how many kilometers something moves in one second

words per minute

Specialized

4 2.5

The number of words read, spoken, or typed in one minute

cycle per second

Archaic

2 4.1

A unit for frequency equal to one complete cycle in one second

revolutions per minute

Specialized

2 3.5

The number of turns something makes in one minute

beats per minute

Specialized

1 3.1

Number of beats in music in one minute that shows a song's speed

earning per share

Specialized

1 5.5

The profit a company makes for each share of its stock

per centum

1 7.6

A number that shows how much out of every hundred

per curiam

Formal

1 9.9

A court decision made by all judges without saying who wrote it

bits per second

Specialized

1 2.8

A unit that shows how many small pieces of information called bits are sent every second

count per minute

1 3.0

Number of events that happen in one minute

per curiam

Formal

1 9.9

Made by a court as a whole without naming any judge

million instructions per second

Specialized

1 4.4

A unit for measuring how fast a computer processor runs, equal to one million instructions per second

per diem

1 6.9

For each day

force per unit area

Specialized

1 4.9

How hard a force pushes on each small part of a surface

liters per hundred kilometers

1 3.5

How many liters of fuel a car uses to drive 100 kilometers

million floating point operations per second

Specialized

1 4.8

A measure of how fast a computer does one million math calculations each second

trillion floating point operations per second

Specialized

1 4.9

A measure of computer speed equal to one trillion math calculations every second

billion floating point operations per second

Specialized

1 4.7

A measure of how many billion math calculations a computer does each second

bits per inch

Specialized

1 5.1

A measure of how many bits are stored in each inch of a tape or disk

charge per unit

3.4

The cost for each item or unit used

kilocycle per second

Archaic

7.2

A unit equal to one thousand cycles per second, now called kilohertz

megacycle per second

Archaic

6.2

A unit equal to one million cycles per second for measuring radio frequencies

gigacycle per second

Archaic

4.9

A measure of cycles per second equal to one billion

Surface Forms

per main

Etymology

Per comes from the Latin word per meaning 'for each' or 'through', and you can see this in the word percent, which originally meant 'per' hundred. So per hour or per day means 'for each' hour or day.