ショッピング
日付、時間、旅行予算、チップ、通貨換算など、日常生活で使える計算ツールです。
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Percent Off Calculator
Calculate the sale price after one or two stacked discounts. Stacked discounts multiply, not add — find your true effective discount and savings.
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Tip Calculator
Calculate the tip amount, total bill, and cost per person for any party size. Includes an international tipping customs reference table.
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Discount Calculator
Calculate the final price after a percentage discount plus optional sales tax. See how much you save. Handles stacked tax-and-discount order correctly.