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EDICT gives almost the same translation for these two expressions:

> 出来る限り; できる限り 【​できるかぎり】 (n) as ... as one can
>
> できるだけ 《出来るだけ》 (exp) (uk) as much as one can; as much as possible; if at all
> possible;

Even the example sentences are almost the same:

> 私はできる限りあなたの援助をします。 I'll help you as far as I can.  
>  できるだけ多くの本を読みなさい。 Read as many books as you can

What is the difference between the two expressions?
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2011-06-08T18:08:48.633
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question
set-phrases expressions
What is the difference between 出来る限り and 出来るだけ?
Quoting from a "teach me goo" question of the same content:

> 最大限の度直をするという基本的には同じ意味ですが、「できるかぎり」の方が最大限で最高というか「できるだけ」よりも努力する強さがより大きいです
>
> 使い分けは微妙にあります
>
> 自分が何かを行う場合は「できるかぎり」の方が強い意志を相手に感じさせるでしょう 「できるだけ」と言うと場合によっては手抜きに感じられる場合もあります

Source: <http://oshiete.goo.ne.jp/qa/4891438.html>

The general summary is that 「限り」 shows that you're doing the most possible to
complete the task, as in "I'll do everything in my power" type of motivation.
Whereas in the case of 「だけ」, it has somewhat of a "yeah, I'll do what I can"
context, as in you might cut corners.
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2011-06-08T18:19:50.950
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answer
The meaning is the same. If we compare できるだけ and できる限り, できる限り (literally “to
the limit one can”) sounds stronger than できるだけ (literally “as much as one
can”), so the nuance is slightly different, but not much.

While onteria_’s answer and the answers on Goo to which it links have some
points, I think that they are describing the difference between the two
phrases bigger than it actually is.

I wrote above “ _If we compare_ できるだけ and できる限り, できる限り sounds stronger than
できるだけ.” But when we hear one of the phrases, it is rare to compare it to the
other phrase which was not used.

I do not buy the argument that できるだけ implies the possibility of cutting
corners. Sure, it is true that “ **depending on the situation** , できるだけ
**sometimes** gives the impression of cutting corners,” of course, but that is
saying nothing. The same applies to できる限り, and it does not explain any
difference between the two phrases.
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2011-06-08T20:20:09.303
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answer
出来る限り: Do whatever it takes. できるだけ: Do what you can.
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2011-06-09T03:34:09.420
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