InvestinGoal's 39 calculators work out the numbers behind a trading or investing decision, from position size and margin to compound growth and yield. Each one is free, with no signup, and the exchange rates and crypto prices they use are shown with their date. Choose the section that matches your decision, and run the numbers before you commit capital.
Investing and growth calculators project what a sum of money becomes over time, once a rate of return and a number of years are applied to it. Time is the variable that does the work here, and a growth chart shows where the curve steepens. The Investment Calculator is the starting point if you are still learning how to invest, the Compound Interest Calculator isolates the mechanism, and the Inflation Calculator runs the projection backwards, into what that future balance buys in today's money.
Stock calculators work out what a share position costs, what it returns and how large it should be. The frame is one position from entry to exit, which is where most stock trading decisions are actually made. The Stock Calculator holds the three common calculations together, so it is the fastest way in. The Average Down Calculator matters after you have added to a losing position: your weighted average cost sets a break-even price that rarely matches the price you remember paying.
Dividend calculators measure the income a holding pays rather than the price it trades at. The tools in this family split by the question you are asking: how much cash arrives in a year, what rate that represents against today's price, how reinvesting changes the position, and what a rising payout does to the yield on your original cost. The Dividend Calculator answers the first, and the Dividend Yield Calculator answers the second, which is the one that lets you compare two stocks on the same basis.
ETF and fund calculators turn a fund's percentage fee into the amount of money it takes out of a balance over the years the fund is held. The Expense Ratio Calculator does that conversion, and the conversion is the point: 0.05% and 0.75% read as a rounding difference in decimals and stop reading that way once a holding period is priced in dollars. Choosing between two funds tracking the same index is a routine decision when investing in ETFs, and the fee is the number that settles it.
Bond and fixed income calculators work out what a holding returns when the return arrives as a coupon on a fixed face value. Price and yield move inversely, so the same coupon buys a different return depending on what you paid, and the years left to maturity decide how much that gap still matters. The Bond Calculator prices the stream of coupons and the repayment, the ground most bond trading is built on, and the Yield to Maturity Calculator answers the other direction: what a given price actually yields if the holding is kept to the end.
Forex calculators convert a currency trade into the figures the account is actually exposed to: pip value, lot size, margin and profit in the account currency. The same pip is worth different amounts depending on the pair, the lot and the currency the account is denominated in, which is why forex trading rarely rewards mental arithmetic. The Position Size Calculator is the one to run before entry, and the Forex Calculator covers margin and conversion in one place, with the date of the rate it used.
Trading math and risk calculators express risk and return as ratios and probabilities, on one trade or across a track record. That math is market agnostic, which is why it sits outside the asset families in online trading. The Risk/Reward Ratio Calculator derives the breakeven win rate from your entry, stop and target, while the Win Rate Calculator reaches the same figure from your completed trades and adds expectancy per trade in R. The Risk of Ruin Calculator prices the tail: the probability of reaching zero at your settings.
Crypto calculators apply profit, position size and average-cost math to assets that trade around the clock in fractional units. Positions are held in fractions of a coin, and the market never closes, so both the size and the entry price need pinning down. The Crypto Calculator covers all three, the Bitcoin Calculator converts down to satoshis with the timestamp of the price used, and the Crypto Staking Calculator projects rewards from an APY. Fees and volatility weigh heavier in crypto trading than anywhere else on this page.
Options calculators price a contract and show what a position is worth at expiry across a range of underlying prices. The payoff is not a straight line, so a position that looks profitable at one underlying price can be flat or negative a few dollars away, which is why options trading positions are not judged by eye. The Black-Scholes Calculator returns a theoretical price and the five Greeks, and the Options Profit Calculator charts the payoff of up to four legs at expiry.
Futures and prop firm calculators work out the numbers that contract specifications and firm rules decide on your behalf. You choose the entry and the size; the exchange has already fixed the tick, the multiplier and the margin, and a prop firm has already fixed the split and the thresholds. The Futures Calculator turns ticks into money across 21 contracts, which is the first thing futures trading asks you to get right, and the Prop Firm Payout Calculator does the same for what actually reaches your account.
A trading calculator is a tool that works out one number a trader or investor needs before committing money, such as a position size, a profit or a yield. It takes inputs you already have, applies one formula, and returns a figure. That narrowness is the definition: a trading calculator does not forecast a price, screen a market, issue a signal or backtest a system, and any tool that does those things is something else. Each of the 39 calculators here shows the math behind its result, so the number can be checked rather than trusted.
You choose the right calculator by starting from the decision in front of you, not from the asset you hold. If you are about to enter, you need a position size, a lot size or a margin figure. If you are already in a position, you need profit or drawdown. If you are judging a system rather than a single trade, you need the risk math. If you are planning over years, you need compounding.
When none of those fit, the four all-in-one tools are the quickest start. The Investment, Stock, Forex and Crypto calculators each hold the three most common calculations for their market, and hand you off to the specific tool when you need the detail.
The market data in these calculators comes from public sources: European Central Bank reference rates for currencies and CoinGecko for crypto prices, each with a backup provider when the first one is unreachable. The ECB publishes its euro foreign exchange reference rates once per business day, at around 16:00 CET, and not on weekends or TARGET closing days, so a currency figure here is a daily fixing that carries the date it was set. That is what the "Rates as of" and "Prices as of" labels report. The data is fetched server-side and cached across the network rather than requested by your browser, so every visitor sees the same figure. If a primary source and its backup both fail to answer, the tool keeps the last good figure with its own date instead of emptying the field. Every other number in a calculator is an input you supply.
The limits of a free online calculator are that it returns an estimate built from the inputs and assumptions you give it, and leaves out every cost you do not enter. Slippage, the spread and commission your broker applies at the moment of execution, overnight financing and the conversion rate the broker uses all sit outside the result unless you put them in. Projections assume a constant rate of return, which no market sustains across a real holding period. A currency figure here is an indicative reference rather than the price you will be filled at, because the European Central Bank labels its reference rates "for information purposes only" and advises against using them for transactions. The output is an input to your decision, not a forecast of it.
Yes. All 39 calculators on this page are free to use, with no account, no email address and no download. There is no usage limit, no paid tier and no feature held back behind a signup. The tools are funded by the rest of InvestinGoal, which compares brokers and may earn a commission when a reader opens an account elsewhere on the site.
Each calculator runs when you press Calculate, not while you type. The reason is accuracy: a half-typed number would otherwise produce a result that looks finished but is not. If you change an input after calculating, the result dims to show it is out of date, and it refreshes on the next press of Calculate.
Only if you ask them to, and only a short list of settings. The "Save my defaults" option stores display and calculation preferences in your own browser, using local storage: the currency you work in, the account currency, the basis, frequency, timing and decimal settings a tool offers. It never stores an amount, an income, a gain, a rate, a leverage figure or an instrument. Saved values expire after 30 days, nothing is sent to InvestinGoal and nothing is tied to an identity. The Clear option, or clearing your browser data, removes them immediately.
Yes. Every calculator on this page works in the account currency you choose and is not tied to one country: the formulas behind position size, profit, yield and compounding are the same wherever you trade. Where a tool needs a market figure, it uses a published reference rate or price and shows the date it carries. What these tools do not do is model any country's tax rules, which is why there is no tax calculator on this page.
The calculators are built and maintained by the InvestinGoal team and reviewed by Filippo Ucchino, who has worked in the trading industry since 2010. InvestinGoal is an independent comparison and education publisher rather than a broker, so none of the tools are tied to a platform you might trade through. Each tool also shows the formula it applies, so the calculation can be reproduced by hand instead of taken on our word.
The calculators on this page are provided for education, not financial advice. Trading and investing carry a risk of losing money, and every projection depends on assumptions that the market is under no obligation to meet.
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