To the extent possible; as much as can be done given the circumstances or conditions.
可能な限り早くお返事いただけると助かります。
I would appreciate a reply as soon as possible.
可能な限り環境にやさしい材料を使って製品を作っています。
We make products using environmentally friendly materials as much as possible.
明日の天気次第ですが、可能な限り屋外でのイベントを実施します。
Depending on tomorrow's weather, we'll hold the outdoor event as much as possible.
可能な限りの準備はしたが、予期せぬ問題が起きるかもしれない。
We've prepared as much as possible, but unexpected problems may still occur.