Python: Round a floating-point number to specified number

Last update on December 21 2024 07:22:05 (UTC/GMT +8 hours)

Round Float to Decimals

Write a Python program to round a floating-point number to a specified number of decimal places.

Sample Solution:

Round to specified Decimals using %f Function:

Python Code:

# Define the order amount as a floating-point number.
order_amt = 212.374

# Print the total order amount with 6 decimal places.
print('\nThe total order amount comes to %f' % order_amt)

# Print the total order amount with 2 decimal places using string formatting.
print('The total order amount comes to %.2f' % order_amt)

# Print a blank line for formatting.
print()

Sample Output:

The total order amount comes to 212.374000
The total order amount comes to 212.37

Round to specified Decimals using format() Function:

Python Code:

# Define the order amount as a floating-point number.
order_amt = 212.374

# Print the total order amount with 6 decimal places using format.
print("\nThe total order amount comes to {:0.6f}".format(order_amt))

# Print the total order amount with 2 decimal places using format.
print("\nThe total order amount comes to {:0.2f}".format(order_amt))

Sample Output:

The total order amount comes to 212.374000

The total order amount comes to 212.37

Python Code Editor:

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