Stock Calculator UK

Calculate Stock Returns Stock Trading

Buy Price (£ per share)

Price you paid per share.

Sell Price (£ per share)

Price you sold per share.

Number of Shares

Total shares bought and sold.

Holding Period (years) (optional)

How long you held the stock.

Dividends Received (£) (optional)

Total dividends received during holding period.

Stock Return: Total return including capital gains and dividends.

Example £10.50 buy, £12.75 sell, 100 shares → £225 profit

Stock Return Analysis

Enter your stock details, then click Calculate Stock Return.

What Is a Stock Calculator?

A stock calculator helps you calculate your stock investment returns including capital gains, dividends and annualised returns. This stock calculator UK is essential for UK investors tracking their portfolio performance.

How to Use the Stock Calculator

Enter your buy price, sell price, number of shares, and optionally holding period and dividends. Click Calculate Stock Return to see your total profit and return rates.

How Stock Returns Are Calculated

Total Profit = (Sell Price − Buy Price) × Shares + Dividends
ROI = (Total Profit ÷ Total Investment) × 100
Annualised Return = ((1 + ROI)^(1/years) − 1) × 100

Stock Return Example

Example: 100 shares at £10.50, sold at £12.75, £100 dividends, 3 years

Investment: £10.50 × 100 = £1,050
Sale proceeds: £12.75 × 100 = £1,275
Capital gain: £225
Dividends: £100
Total profit: £325
ROI: 31.0%
Annualised return: 9.4%

Understanding Stock Returns

Capital Gain: Profit from price appreciation
Dividends: Income from stock ownership
Total Return: Capital gains + Dividends
ROI: Total return relative to investment
Annualised Return: Average yearly return

UK Stock Market Returns (Historical)

FTSE 100 (10-year): ~5-7% annualised
FTSE 250 (10-year): ~7-9% annualised
Global Stocks: ~7-10% annualised
Dividend Yield: ~3-4% on average

Dividend Tax in the UK

Dividend Allowance: £500 (2025/26)
Basic Rate: 8.75% on dividends above allowance
Higher Rate: 33.75%
Additional Rate: 39.35%

Capital Gains Tax (CGT) in the UK

CGT Allowance: £3,000 (2025/26)
Basic Rate: 10% on gains above allowance
Higher Rate: 20% on gains above allowance
ISAs: Tax-free capital gains and dividends

Common Stock Calculation Mistakes

Forgetting dividends — they are part of total return
Ignoring fees — brokerage fees reduce returns
Not annualising returns — compare annualised returns
Ignoring taxes — tax reduces net returns
Not including reinvestment — dividends reinvested boost returns

Important: This calculator provides estimates only. Stock returns are not guaranteed. Past performance does not indicate future results. Always seek professional financial advice.

Important Assumptions and Limitations

Does not account for brokerage fees or charges
Does not account for taxes on gains or dividends
Does not account for inflation
Results are estimates, not guaranteed

Frequently Asked Questions

What is a stock calculator? +

How is stock return calculated? +

What is a good stock return? +

What is the difference between ROI and annualised return? +

Do I pay tax on stock returns? +

What is a UK ISA? +

Are the results exact? +

Written and reviewed by Abdul Wahid

Financial content specialist with a focus on UK investments and stock market analysis.

For investment planning, visit our Investment Calculator UK. For ROI, try our ROI Calculator UK.