How do I round up a number to the nearest 10 in python 3.4.0?

Question

Because "round" will round a number such as 24 down to twenty, when I need the answer to be rounded up to 30. Please help me! I've been stuck on this for ages :(

Please show us the function you actually made... will be easier to help you — Roberto, Nov 30 '15 at 15:07
Possible duplicate of [Python - round up to the nearest ten](http://stackoverflow.com/questions/26454649/python-round-up-to-the-nearest-ten) — Falko, Nov 30 '15 at 15:11

score 0 · Answer 1 · answered Feb 09 '17 at 09:29

0

Import math

def roundup(x):

#rounding method
return int(math.ceil(x / 10.0)) * 10

answered Feb 09 '17 at 09:29

ljkj7

1

Yaakov Bressler · Answer 2 · 2019-06-06T17:50:06.180

0

This function will round both up and down, correctly:

import math

def roundup(x, n=10):
    res = math.ceil(x/n)*n
    if (x%n < n/2)and (x%n>0):
        res-=n
    return res

num = [5,9,11,15]
r_num = [roundup(n) for n in num]

print(r_num)
# [10, 10, 10, 20]

edited Jun 06 '19 at 17:50

answered Jun 06 '19 at 17:38

Yaakov Bressler

9,056
2
45
69

The OP wants 24 to round *up* to 30. – Mark Dickinson Jun 06 '19 at 17:42
This function would also appear to "round" 20 to 10. – Mark Dickinson Jun 06 '19 at 17:46
"To the nearest 10" is ambiguous. Also, corrected code. – Yaakov Bressler Jun 06 '19 at 17:50
Sure, but the question body is clear enough: the OP is quite explicit about wanting 24 to round to 30. – Mark Dickinson Jun 06 '19 at 18:13
AH! Careless of me. _(Should I remove my answer?)_ – Yaakov Bressler Jun 06 '19 at 18:29

How do I round up a number to the nearest 10 in python 3.4.0?

2 Answers2