2025年のおすすめFXロット計算ツール

One of the most effective ways to control risk is to use a forex lot calculator.
This tool helps you calculate the optimal lot size based on your account balance, risk tolerance and stop loss distance.

Whether you’re a beginner or an experienced trader, using a reliable position size calculator can help protect your capital and ensure stable trading.

What is FX lot calculation?

Forex Lot Calculator and Risk Calculator is a tool that will help you calculate the ideal lot size for you based on personalized factors such as your account balance, risk tolerance (%) and the stop loss level you have set.

Recommended Forex Lot Calculator for 2025

1. Forex Tester Online Lot Calculator

Forex Tester’s online lot calculator is a practical tool for calculating the ideal position size for each trade based on your risk parameters.
You can input key variables such as account balance, risk percentage, stop loss (pips), currency pair and more.

Main features:

• Simple, web-based interface

• Quickly calculate position size in lots

• Also great for backtesting manual strategies

• Works well with Forex Tester Online software and can be integrated into simulated trading

Recommended for:
Traders who want to use the Forex Tester platform for quick and easy risk management during backtesting or live trading.

2. Myfxbook Lot Calculator

Myfxbook offers a user-friendly position size calculator that
allows you to quickly calculate trade size based on your account currency, risk level, stop loss pips and trade direction.

Main features:

• Clean and intuitive interface

• Multiple account currencies supported

• Supports quick decision-making with speedy calculations

• Mobile Compatible

Recommended for:
Traders looking for a tool that combines ease of use with functionality, especially those using Myfxbook.

3. CashbackForex Lot Calculator

CashbackForex offers a highly customizable forex lot calculator,
with detailed input options including leverage and pip values ​​for each currency pair.

Main features:

• Advanced Input Fields

• Real-time pip calculation

• Supports a wide range of currency pairs and financial instruments

• Designed for intermediate to advanced players

Recommended for:
Advanced traders who trade multiple currency pairs and custom settings.

4. Securities.io Lot Calculator

Securities.io provides a simple and fast forex lot calculator for both desktop and mobile.
It is designed to be quick and feature-rich.

Main features:

• Fast and responsive interface

• Simple layout

• Basic but effective risk management is possible

Recommended for:
Traders who want to quickly calculate lots without complicated operations.

What is a lot in FX?

In Forex trading, a “lot” refers to the transaction size, or the number of units of currency you buy or sell.
A standard lot is equal to 100,000 units of the base currency.
For example, if you have a 1 lot long position on EUR/USD, it means you are buying 100,000 Euros for the US Dollar.

Many retail brokers also offer smaller lot sizes such as mini lots (0.10), micro lots (0.01) and nano lots (0.001), allowing for more flexibility in your trading.

Why should you use a position size calculator?

1. Effective risk management

Calculating the correct lot size helps you minimize potential losses and avoid excessive risk on a particular trade. It is a fundamental strategy for capital protection.

2. Maximize returns

Allocating capital efficiently has the potential to improve overall returns while limiting the impact of underperforming positions.

3. Improved consistency

The calculator promotes a disciplined, non-emotional trading style.

4. Capital Preservation

You can set a maximum risk percentage for each trade to ensure that a single loss does not wipe out your entire account.

5. Adapt to your strategy

Whether you are cautious or aggressive, you can adjust your position size based on your risk tolerance.

6. Time saving and high accuracy

Manual lot calculations are time-consuming and error-prone. Use our Forex Lot Calculator to calculate your lot size quickly and accurately.

7. Supports self-confidence and clear decision-making

Once the risks and rewards are clear, you will be able to make trading decisions with confidence.

lastly

Choosing the right lot calculator for your trading style and experience level is the first step to success.
From simple to advanced, these tools will help you manage risk more effectively and trade with more confidence.

Get into the habit of calculating your lot size before every trade — small steps that will pay off big time.