Python floor to nearest 10

Python – Round Number to Nearest 10

To round number to nearest 10, use round() function. We can divide the value by 10, round the result to zero precision, and multiply with 10 again. Or you can pass a negative value for precision. The negative denotes that rounding happens to the left of the decimal point.

In this tutorial, we will write Python programs to round a number to its nearest 10 or 100.

For example, if the number is 3652, then its nearest number to 10 is 3650. And the nearest 100 is 3700.

Python floor to nearest 10

Example 1 – Round Number to Nearest 10 using round()

In this example, we will read a number from user, and round the value to its nearest 10 using round() function.

Python Program

number = int(input('Enter a number :'))
rounded = round(number/10)*10
print('Rounded Number :', rounded)

Output

Enter a number :3652
Rounded Number : 3650

Or you can also provide a negative number as the second argument for round() function, to round to those number of digits before decimal point.

Python Program

number = int(input('Enter a number :'))
rounded = round(number, -1)
print('Rounded Number :', rounded)

Output

Enter a number :3652
Rounded Number : 3650

Example 2 – Round Number to Nearest 100 using round()

In this example, we will round the number to its nearest 100 using round() function.

Python Program

number = int(input('Enter a number :'))
rounded = round(number/100)*100
print('Rounded Number :', rounded)

Output

Enter a number :3652
Rounded Number : 3700

Or you can also provide a negative number as the second argument for round() function, to round to those number of digits before decimal point. To round to nearest 100, we need to provide -2 as second argument to round().

Python Program

number = int(input('Enter a number :'))
rounded = round(number, -2)
print('Rounded Number :', rounded)

Output

Enter a number :3652
Rounded Number : 3700

Conclusion

Concluding this Python Tutorial, we learned how to use round() function to round a number to nearest 10 or 100. You can use the same process to find the nearest number to any digit before the decimal point.

If I get the number 46 and I want to round up to the nearest ten. How do can I do this in python?

46 goes to 50.

asked Oct 19, 2014 at 19:47

3

round does take negative ndigits parameter!

>>> round(46,-1)
50

may solve your case.

answered Oct 19, 2014 at 19:51

5

You can use math.ceil() to round up, and then multiply by 10

import math

def roundup(x):
    return int(math.ceil(x / 10.0)) * 10

To use just do

>>roundup(45)
50

answered Oct 19, 2014 at 19:58

Python floor to nearest 10

ParkerParker

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5

Here is one way to do it:

>>> n = 46
>>> (n + 9) // 10 * 10
50

answered Oct 19, 2014 at 19:50

NPENPE

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3

This will round down correctly as well:

>>> n = 46
>>> rem = n % 10
>>> if rem < 5:
...     n = int(n / 10) * 10
... else:
...     n = int((n + 10) / 10) * 10
...
>>> 50

answered Oct 19, 2014 at 20:02

Python floor to nearest 10

2

How do you round to the nearest in Python?

Python does have two methods that let you round up and down. The floor() method rounds down to the nearest integer. ceil() rounds up to the nearest integer.

Does 0.5 round up or down Python?

So . 5 is round up for positive values and round down for negative values. For instance, both round(0.5) and round(-0.5) return 0 , while round(1.5) gives 2 and round(-1.5) gives -2 .

Is there a roundup function in Python?

Python has a built-in round() function that takes two numeric arguments, n and ndigits , and returns the number n rounded to ndigits . The ndigits argument defaults to zero, so leaving it out results in a number rounded to an integer.

How do you round down to the nearest 5 in Python?

Round a Number Down to the nearest 5 in Python # Call the math. floor() method passing it the number divided by 5 . Multiply the result by 5 . The result of the calculation is the number rounded down to the nearest 5 .