Fewer vs Less: When to Use Each
1 min read
Short answer
The rule
- Fewer goes with countable nouns — things you can put a number in front of. Fewer emails. Fewer people. Fewer than ten words.
- Less goes with uncountable nouns — things you measure as a mass. Less email. Less noise. Less time.
| Countable → fewer | Uncountable → less |
|---|---|
| fewer cups of coffee | less coffee |
| fewer suggestions | less advice |
| fewer calories | less fat |
| fewer words | less text |
The test: can you say three before the noun? Three cars ✓, so fewer cars. Three traffic ✗, so less traffic.
The same pairing applies to many and much: many cars, much traffic. If you would say many, you want fewer.
The exceptions
Time, money, distance and weight usually take less, even with a number, because you think of them as a single amount rather than individual units.
- It took less than ten minutes.
- She earns less than £30,000.
- The shop is less than two miles away.
- The parcel weighs less than 5 kg.
Percentages and fractions follow the noun they refer to: less than half the milk, but fewer than half the students.
“Or less” after a number is standard: Write your answer in 50 words or less. This is widely accepted, which is why 10 items or less on supermarket signs is defensible, even if 10 items or fewer is the tidier choice.
Does it matter?
In conversation, less with plural nouns is common and has been for centuries. In formal writing — essays, reports, anything likely to be read by someone who cares — readers expect fewer with countable nouns, and using it costs nothing.