How to round a number up in Flutter?

Question

How can a number be rounded up to the nearest whole number in Flutter?

• 0.1 => 1
• 1.5 => 2
• -0.1 => -1

The Num round methods rounds to the nearest integer. How can one always round up?

Answer 1

You can use the .ceil() method to achieve what you want.

Example:

print(-0.1.ceil()); => -1

print(1.5.ceil()); => 2

print(0.1.ceil()); => 1