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Buyable Quantity
Given a budget and a unit price, compute how many shares you can buy, the actual amount used and the leftover cash.
📥 Inputs
Total cash available to invest.
Per-share purchase price.
KR retail default: 0.015%. Enter 0 to ignore.
Stocks round down to whole shares.
📊 Result
Buyable Quantity
—
Amount Used
—
Fee Paid
—
Remaining Cash
—
Formula
Unit Cost = price × (1 + fee%/100)
Quantity = floor(Budget / Unit Cost) (coins: not floored)
Amount Used = quantity × price
Fee = Amount Used × fee%/100
Remaining = Budget − Amount Used − Fee
Unit Cost = price × (1 + fee%/100)
Quantity = floor(Budget / Unit Cost) (coins: not floored)
Amount Used = quantity × price
Fee = Amount Used × fee%/100
Remaining = Budget − Amount Used − Fee
- Korean stock fee defaults to 0.015% (brokerage avg). Sell tax (0.18~0.23%) is NOT included here — see Return Rate calculator.
- For US stocks, most brokers charge 0 commission — set fee rate to 0.