Stock Average Down Calculator

Tracking since Apr 2, 2026.

Changelog

• Apr 17, 2026
  description

  Stock Average Down Calculator helps investors quickly simulate the effect of
    buying more shares at a lower price.

  Stock Average Down Calculator — the fastest way to plan your next stock purchase.
  
  When your stock drops, should you buy more? This calculator instantly shows you the impact of averaging down: your new average price, return rate change, and total investment needed.
  
  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  
  📊 CORE CALCULATOR (Free)
  
  • Enter your average purchase price, current price, and shares owned
  • Slide to adjust additional shares and see results update in real time
  • View before/after return rates side by side
  • New average price, total shares, total investment, and additional cost — all at a glance
  
  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  
  🎯 TARGET AVERAGE CALCULATOR (Free)
  
  Set your goal. Get the exact number.
  
  "I want my average down to $130 — how many shares do I need?"
  
  Just enter your target average price, and the calculator instantly tells you:
  • Exact number of shares to buy
  • Total investment required
  
  No more guessing with the slider. Plan your purchase with precision.
  
  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  
  📋 PORTFOLIO TRACKER (Free: 3 / Pro: Unlimited)
  
  Save your stocks. Track them all in one place.
  
  • Save calculations with a custom name (e.g., "AAPL", "TSLA")
  • See return rates at a glance in the portfolio list
  • Tap to load — instantly restore all values
  • Delete anytime
  • Data persists across sessions
  
  Free users can save up to 3 stocks. Upgrade to Pro for unlimited saves.
  
  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  
  📈 SCENARIO SIMULATOR (Pro)
  
  What if the price drops another 20%? What if it bounces 10%?
  
  Compare three scenarios side by side:
  • Bear (-20%) — worst case
  • Moderate (-10%) — likely dip
  • Bull (+10%) — recovery
  
  Each scenario shows the new price, new average, and return rate if you buy the same additional shares at that price. Plan your strategy before committing.
  
  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  
  💱 MULTIPLE CURRENCIES (Pro)
  
  Calculate in your local currency:
  • USD ($) — Free
  • KRW (₩), JPY (¥), EUR (€), GBP (£), CNY (¥), INR (₹), BRL (R$) — Pro
  
  Each currency has proper formatting: decimal handling, thousand separators, and locale-specific display.
  
  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  
  🌍 8 LANGUAGES
  
  English, 한국어, 日本語, 简体中文, 繁體中文, Deutsch, Español, Português
  
  Auto-detects your browser language. Switch anytime from the popup.
  
  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  
  🌙 DARK MODE
  
  Follows your system preference automatically. No setup needed.
  
  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  
  ⚡ WHY THIS EXTENSION?
  
  • Instant — no sign-up, no login, no account needed
  • Private — all calculations stay on your device
  • Lightweight — under 50KB, no external scripts
  • Persistent — your inputs and portfolio are saved automatically
  • Clean UI — designed for quick decisions, not clutter
  
  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  
  💎 FREE vs PRO
  
  FREE:
  ✓ Core calculator
  ✓ Target average calculator
  ✓ Portfolio (up to 3 stocks)
  ✓ USD currency
  ✓ 8 languages
  ✓ Dark mode
  
  PRO ($1.49/mo or $13.49/yr — 25% off):
  ✓ Everything in Free
  ✓ Scenario simulator
  ✓ 7 additional currencies
  ✓ Unlimited portfolio saves
  
  ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  
  Perfect for retail investors who average down on stocks and want a quick, private, no-nonsense tool to plan their next move.

• Apr 17, 2026
  short_description

  Calculate new average stock price when averaging down

  Calculate new average stock price when averaging down. DCA cost basis calculator with multi-currency and return rate analysis.

• Apr 17, 2026
  host_permissions

  https://paddle-extensions-backend.vercel.app/*

  https://*.vercel.app/*

Permissions & access

Permissions

storagealarms

Host access

https://*.vercel.app/*

Screenshots

Similar extensions

Alternatives to Stock Average Down Calculator, ranked by description similarity.

Stock Average Calculator

Calculate average stock prices in seconds

36

★ 4.5

Stock market calculator target and stoploss

Help to calculate the total number of stocks/lots you can purchase and their target and stop-loss price

40

Stock analyzer

Calculate stock target price and set Stop-Loss and Take-Profit with one simple click.

45

Risk Calculator

A simple fixed loss calculator for stock trading.

6

★ 5.0

StockScout

Track stock prices in real-time and get instant alerts when they hit your target price. Monitor your portfolio.

2

Stock Average Calculator

Easily calculate your stock average buy price in INR. Visit shareprice-target.com for more stock tools.

9

A股补仓助手高级版

实时行情、成本计算与目标反推工具

6

Stock Options Calculator

A Black-Scholes options calculator with Greeks

8

★ 5.0