Position Size Calculator+
Robin van Eck van der Sluijs Finance iPhoneiPadiPod touch
Position Size Calculator+ is a free Finance app for iPhone and iPad by Robin van Eck van der Sluijs. Rated 4.5/5 from 41 ratings. Requires iOS 17.0.
- Rating
- 4.5
- 41 ratings
- Price
- Free
- on the App Store
- Size
- 7 MB
- Age 17+
- Updated
- Oct 25
- 2026 · v1.4
Screenshots
About Position Size Calculator+
Plan every trade with a position size that matches your risk tolerance. Position Size Calculator+ gives you a clear, guided way to work out how much to trade, based on your account balance, the risk percentage you choose, your entry price and your stop-loss level. Simply enter your trade details to calculate: - Position size - Trade quantity - Amount at risk - Potential profit - Risk/reward ratio Whether you are planning a long or short position, the calculator checks your inputs and updates the results instantly. Add an optional profit target to weigh the potential reward before you enter a trade. Designed for both new and experienced traders, Position Size Calculator+ features: - Guided three-step calculation - Support for long and short trades - Configurable risk from 0.5% to 3% - Optional take-profit calculations - Clear warnings when a stop or target does not fit the trade - Easy copying of calculated values and a one-tap share of your trade setup - Light and dark mode - Made for iPhone, iPad and Mac - Accessible, straightforward controls Use Position Size Calculator+ when planning trades involving stocks, forex, cryptocurrencies, or other price-based markets. Good risk management starts before a trade is placed. Calculate your exposure, understand the potential outcome, and approach every position with a clear plan. Position Size Calculator+ is free to use. It is supported by ads on iPhone and iPad (there are none on the Mac), and you can leave an optional in-app tip to buy the developer a coffee. Position Size Calculator+ is an informational calculation tool and does not provide financial or investment advice. Always verify calculations before making financial decisions.
Ratings & reviews
4.5
41 ratings
What’s new
Version 1.4 · Updated October 25, 2026
A fresh look, and now on the Mac. - New design with a bold result card, in light and dark mode - Position Size Calculator+ is now available for Mac - Share your trade setup in one tap - Clearer messages when a stop or target does not fit your trade - Links to privacy and support at the bottom of the screen - General performance and reliability improvements
App privacy
The developer, Robin van Eck van der Sluijs, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Usage Data: Product Interaction
- Diagnostics: Crash Data, Performance Data
Used for: Analytics, App Functionality
Alternatives to Position Size Calculator+
Looking for apps like Position Size Calculator+? Here are 6 similar apps on the App Store. The highest rated is Stock Calculator - Risk Reward (5.0/5), and all 6 are free to download.
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FX Position Size Calculator
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Stock Position Calculator
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Stock Calculator - Risk Reward
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Risk Management Calculator
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Position Size Calculator+ | 4.5 / 5 (41 ratings) | Free | October 25, 2026 | |
| 3R Calculator - Risk & Reward | 4.2 / 5 (10) | Free | Aug 11, 2026 | Compare |
| FX Position Calculator | 4.6 / 5 (9) | Free | Jul 10, 2025 | Compare |
| FX Position Size Calculator | 4.7 / 5 (231) | Free | Sep 15, 2026 | Compare |
| Stock Position Calculator | 4.4 / 5 (7) | Free | Jul 10, 2025 | Compare |
| Stock Calculator - Risk Reward | 5.0 / 5 (6) | Free | Jan 12, 2024 | Compare |
| Risk Management Calculator | 5.0 / 5 (2) | Free | Sep 1, 2024 | Compare |