ToolForge

平均取得単価計算機

Stock average price calculator: get average cost and profit from multiple buys with add reduce simulation for investment, with one-click copy, offline.

使い方

各行に株数と価格を入力すると、総株数、総コスト、平均取得単価が自動計算されます。

Overview

Stock Average Price Calculator is a Finance tool. Get average cost and profit from multiple buys with add reduce simulation for investment, with one-click copy, offline. It runs 100% in your browser with no upload, so you get instant results with privacy. Whether you need a quick answer or batch processing with precise control, you can enter, validate and export in seconds. The UI is responsive on mobile, tablet and desktop and supports one-click copy.

Use cases

  • Daily use of Stock Average Price Calculator: Enter shares and price per line to calculate total shares, cost and average price. — enter and get instant results without manual lookup.
  • One-click copy keeps results ready to save, check or share with family and pros.
  • Use Stock Average Price Calculator offline or on poor network — all calculations stay local and private.
  • Model cash flow and payback
  • Compare mortgage amortization

How to use

  1. 1 Enter shares and price per line to calculate total shares, cost and average price..
  2. 2 Toggle repayment methods to compare interest
  3. 3 Review schedule and charts
  4. 4 Copy or export details

Highlights

  • Local & private: processing stays in your browser
  • Live validation with tolerant parsing
  • One-click copy and export for docs, code or sheets
  • Batch and offline support under poor network

Notes

  • Nominal vs effective rate may differ
  • Check prepayment penalties
  • Excludes fees/insurance

FAQ

Equal payment vs equal principal?
Equal payment is steady; equal principal saves total interest but starts higher.
Why a few dollars off from bank?
Day-count and rounding differences within 0.1%.
How is Stock Average Price Calculator different?
It runs locally with a focus on speed and privacy, plus tolerant parsing for “average price” and one-click copy for reuse.
Can I use results in official reports?
Use it as a working draft and cross-check with authoritative sources; keep the exported log and parameters for traceability.
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すべての計算はブラウザ内で実行され、データはアップロードされません。