Forex Trading Calculator
Position size · pip value · margin · P/L · KES or USD · Deriv & MT5 🇰🇪
The forex calculator built for Kenyan traders
Whether you trade with Deriv, a CMA-licensed broker like FXPesa or Scope Markets, or any MT4/MT5 account, four numbers decide whether you survive: your position size, the pip value, the margin a trade ties up, and the profit or loss when price moves. This tool does all four in shillings or dollars, so you can risk-manage every trade before you click buy.
Position sizing, the habit that keeps accounts alive
The fastest way to blow a trading account is to open positions that are too big for the stop-loss. Professionals flip it around: decide the loss first, then size the trade to it. The rule is risk 1–2% of your account per trade:
Lot size = (Account × Risk%) ÷ (Stop-loss in pips × pip value per lot)
On a KES 130,000 account risking 2% (KES 2,600) with a 50-pip stop on EUR/USD, that is about 0.04 lots. Halve your stop and you can double your size for the same risk, the Position Size tab shows it instantly.
Pips, lots and pip value
A pip is the smallest standard move (0.0001 on most pairs, 0.01 on JPY pairs). Lot sizes: a standard lot is 100,000 units, a mini lot 10,000, a micro lot 1,000. For USD-quoted pairs like EUR/USD the pip value is fixed at about USD 10 / KES 1,295 per pip per standard lot, scaling down to USD 1 (mini) and USD 0.10 (micro). For pairs where USD is the base (USD/JPY, USD/CHF) the pip value depends on the current price, which is why the calculator asks for it.
Margin and leverage, respect it
Margin = Trade size ÷ Leverage. At 1:500, a standard lot of EUR/USD (~USD 108,000 notional) needs only ~USD 216 of margin. That looks efficient, but leverage cuts both ways: it lets you open positions far larger than your balance can absorb, and a small adverse move can wipe the account. Deriv advertises up to 1:1000 on some synthetic indices, the right response is smaller positions, not bigger ones.
Using this for Deriv synthetic indices
For Deriv forex pairs, every number here is exact. Deriv’s synthetic indices (Volatility 10/25/50/75/100, Boom & Crash, Step, Jump) use instrument-specific contract sizes that differ from forex, so pick the Custom option and enter the pip/point value from your MT5 “contract specification” (or Deriv’s own trading calculator), then the position-size, margin and P/L maths all apply unchanged.
Trade responsibly
Honesty matters more than hype here: brokers’ own disclosures show roughly 70–80% of retail traders lose money, and no calculator changes that. What it can do is enforce discipline, consistent small risk, stops that define your loss, and position sizes that match. Forex is legal in Kenya under CMA regulation; verify your broker’s licence, keep records for tax, and never trade rent or borrowed money. Want lower-risk shilling returns instead? Compare a money market fund or Treasury Bill.
Frequently Asked Questions
How do I calculate the right lot size for my account?
Risk a fixed small percentage of your account per trade, most professionals use 1–2%. The formula is: Lot size = (Account × Risk%) ÷ (Stop-loss in pips × pip value per lot). The Position Size tab above does this for you in KES or USD. Example: a KES 130,000 account risking 2% (KES 2,600) with a 50-pip stop on EUR/USD → about 0.04 lots. Position sizing is the single biggest difference between traders who survive and those who blow accounts.
What is a pip and what is it worth?
A pip is the smallest standard price move, 0.0001 for most pairs (0.01 for JPY pairs). For a USD-quoted pair like EUR/USD, a pip is worth about USD 10 per standard lot (100,000 units), USD 1 per mini lot (10,000) and USD 0.10 per micro lot (1,000). In shillings at ~129.5/USD that is roughly KES 1,295 per pip per standard lot. Use the Pip Value tab for your exact pair and lot size.
Does this work for Deriv and synthetic indices?
Yes for Deriv forex pairs (and MT5, and any broker), the pip, margin and position-size maths are identical. Deriv synthetic indices (Volatility 75, Boom & Crash, Step, Jump) use instrument-specific contract sizes that differ from forex, so for those use the “Custom” pair option and enter the pip/point value from your MT5 contract specification, or Deriv’s own trading calculator. Everything else, risk %, lot size, margin, works the same.
How does leverage and margin work?
Margin is the deposit your broker locks to open a trade: Margin = Trade size ÷ Leverage. At 1:500 leverage, one standard lot of EUR/USD (~USD 108,000 notional) needs only ~USD 216 margin. Higher leverage frees up margin but magnifies losses just as much as gains, it does not change your risk, your position size does. Deriv offers up to 1:1000 on some instruments; treat that as a danger, not a feature.
Is forex trading legal in Kenya?
Yes. Online forex is regulated by the Capital Markets Authority (CMA), which licenses local non-dealing brokers (e.g. Scope Markets, EGM Securities/FXPesa, Pepperstone Kenya). Many Kenyans also trade with offshore brokers like Deriv. Trading is legal; profits may be taxable, keep records. Always verify your broker’s licence before depositing.
What percentage of forex traders actually make money?
Be realistic: brokers’ own disclosures show roughly 70–80% of retail traders lose money. The minority who last share three habits this calculator supports: they risk a fixed small % per trade, they size positions to their stop-loss (not their hopes), and they avoid over-leverage. A calculator cannot make you profitable, discipline can. Never trade money you cannot afford to lose.