Convert pennies to currency with rails

Question

I am using Stripe and getting currency that is in pennies. So 12.90 looks like 1290. I want to convert this to U.S. Currency but if I try and use the number_to_currency method it ends up looking like 1,290.00. Is there a method to convert the full string to currency so it comes out correctly at 12.90?

My current code is:

<h4>Total Payment Due: <%= number_to_currency(@user.total_cost)%>

I think you mean 12.90 instead of 12.95 at the start? – mahemoff Sep 06 '15 at 18:15 — mahemoff, Sep 06 '15 at 18:15

mahemoff · Accepted Answer · 2015-09-06T18:15:10.643

2

You should be able to just divide by 100, but make sure it's a float, ie. use 100.0 to prevent rounding to 12.00.

<h4>Total Payment Due: <%= number_to_currency(@user.total_cost/100.0)%>

That shows $12.90.

edited Sep 06 '15 at 18:15

answered Sep 06 '15 at 18:14

mahemoff

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Just to be clear, the *result* can be a float, but not the `total_cost`; that can stay an integer. – Makoto Sep 06 '15 at 18:15
Updated answer for clarity – mahemoff Sep 06 '15 at 18:17

score 2 · Answer 2 · edited Sep 06 '15 at 18:55

2

You could also use the money gem: https://github.com/RubyMoney/money

Money.new(100, "USD").format #=> "$1.00"

Might be overkill, but will do what you want.

edited Sep 06 '15 at 18:55

dimakura

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answered Sep 06 '15 at 18:18

Tom Fast

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Convert pennies to currency with rails

2 Answers2