round

The round filter rounds a number to a given precision:

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2
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5

{{ 42.55|round }}
{# outputs 43 #}

{{ 42.55|round(1, 'floor') }}
{# outputs 42.5 #}

The round filter takes two optional arguments; the first one specifies the precision (default is 0) and the second the rounding method (default is common):

• common rounds either up or down (rounds the value up to precision decimal places away from zero, when it is half way there -- making 1.5 into 2 and -1.5 into -2);
• ceil always rounds up;
• floor always rounds down.