Calculators & Finance tool

Currency Rounding Calculator

Compare how truncating, rounding and rounding up change the same amount.

Compares whole-won processing; it does not convert currencies or choose an accounting rule.

Process a currency amountCompare truncation, rounding, and rounding up.
LOCAL
Truncate123,450 won-6 won
Round123,460 won+4 won
Round up123,460 won+4 won

Compare three methods at a chosen increment

  • Set amount and increment

    Enter the amount and choose 1, 10, 100, 1,000 or 10,000 KRW. Larger increments can create larger differences from the original.

  • Read the three results together

    Compare Truncate, Round and Round up. Each card also shows how much the result increases or decreases the original amount.

  • Use the document’s rule

    Apply the method required by the invoice or settlement rules. The tool does not choose the appropriate policy; retain the difference when reconciling totals.

Process 123,456 KRW in tens

Start with
Amount 123,456 KRW / increment 10 KRW
Check the result
Truncate: 123,450 (−6); round and round up: 123,460 (+4)

The amount is divided by ten, processed as an integer, then multiplied by ten.