What context can I use each word in?
Learn when and how to use these words with these examples!
optimal
Example
The optimal time to plant tomatoes is in the spring. [optimal: adjective]
Example
We need to find the optimal solution to this issue. [optimal: noun]
optimum
Example
The optimum temperature for brewing coffee is between 195 and 205 degrees Fahrenheit. [optimum: adjective]
Example
We need to reach the optimum level of production to meet our targets. [optimum: noun]
Good things to know
Which word is more common?
Optimal is more commonly used than optimum in everyday language.
What’s the difference in the tone of formality between optimal and optimum?
Both optimal and optimum can be used in formal and technical contexts, but optimum is more commonly used in technical or scientific contexts.