全功能即時自動換算・台灣坪數與國際匯率

即時單位與多國匯率試算器

輸入任意數值即可瞬間自動換算房屋坪數、平方公尺、長度、重量與最新多國主要貨幣匯率。

輸入數值 (Input Amount)

基準單位 (From Unit)

坪 (台灣常用)

平方公尺 (m²)

3.3058

平方公里 (km²)

平方英呎 (sq ft)

35.5832

英畝 (acre)

0.0008

公頃 (ha)

0.0003

Compare airline & agency fares live with automated business-class error fare alerts.

Compute monthly EMI/EP payments with grace periods and one-click Excel schedule export.

Calculate real APR including origination fees and compare loan refinancing savings.

Simulate long-term ETF & stock dividend reinvestment snowball growth curves.

Merge, split, compress, watermark, and OCR PDFs locally in your browser without uploads.

Enhance blurry photos and upscale resolution locally in your browser for free.