RMB Amount Capital Converter

📖 About This Tool

Reimbursement forms, cheques, receipts and contract amount fields all ask for the sum written out in Chinese capital characters. That is not bureaucracy for its own sake. Arabic digits are easy to alter: add one stroke to "1" and it becomes "7". A line like "壹万贰仟叁佰肆拾伍元" cannot be tampered with so easily, because any inserted stroke leaves a visible mess. Financial rules turned this into a requirement, and a handwritten voucher without the capital form is routinely sent back.

The trouble starts when you actually pick up the pen. How do you read a zero in the middle? Does the line end with "整"? What happens when the jiao digit is zero but the fen digit is not? This tool follows the conventional reading: when there are jiao but no fen, "整" goes after the jiao character; when both are zero, "整" goes right after "元"; and a run of consecutive zeros in the middle is read as a single "零".

Beyond single amounts, the batch mode takes a whole column of numbers pasted in at once and converts every line, which is what you want at month end when a stack of expense claims needs filling. Results copy to the clipboard or export as CSV straight into a spreadsheet. The digit breakdown lists the capital character and the place word (拾, 佰, 仟, 万, 亿) for each position, useful for checking a figure by eye or for teaching children how the system works.

Everything runs locally in your browser. No network request is made and no amount ever leaves your machine.

Two mistakes account for most rejected vouchers. The first is dropping the 零 in a figure like 10500, which must read 壹万零伍佰元整 rather than 壹万伍佰元整. The second is writing 整 after an amount that ends in a fen digit, where the line has to stop at that digit instead. The tool applies both rules automatically and prints the reasoning in the hint area, so you can see why the line ends the way it does rather than memorising the rule.

✨ Features

• Single or batch: convert one figure instantly, or paste many lines at once.
• Proper zero handling: a run of zeros collapses to one, and the closing "整" depends on the jiao and fen digits.
• Digit breakdown: capital character and place word for every position.
• Receipt hints: the standard written form plus reminders about commonly missed characters.
• Very large sums: correct grouping up through 亿 and 万 levels.
• Copy and export: one-click copy, plus CSV export for batch results.

🚀 How to Use

1. Pick a mode: a single figure, or batch mode with one amount per line.
2. Type the amount, with up to two decimals and optional thousand separators.
3. Optionally tick the currency symbol and the traditional capital glyphs.
4. Press convert; the result area shows the capital form, the breakdown and the receipt hints.
5. Copy the result, or export batch output as CSV for your records.

⚠️ Notes

• Upper limit: supports up to 9999 亿; split anything larger into several entries.
• Negative values: a "负" prefix is added, but vouchers normally reject negatives, so check what the figure means.
• Decimal precision: rounding stops at fen (two decimals); smaller units are not shown.
• House style: some organisations insist on "正" instead of "整"; follow your own finance team.
• Reference only: a document takes effect from its seal, not from this tool, which does not replace financial review.