Crypto Dictionary

Rule of 70: All You Need to Know

Learn how to estimate the time required to double your investment using the Rule of 70, and its limitations with cryptocurrencies.

The investment realm has grown to encompass different spectrums. With hundreds of different options to invest in, the main question arises. When will the investment double?

The Rule of 70 is a method for estimating the number of years required to double an investment or amount of money. This calculator determines the number of years required for an investment to double based on a specific rate of return.

What is the Rule of 70?

The formula is frequently applied to compare investments with various yearly compound interest rates in order to rapidly estimate how long an investment would take to grow.

Applying the Rule of 70, especially for cryptocurrencies, will allow investors to assess an investment's possible future worth. The method is highly useful for estimating how long it will take for an investment to double in value, even if it is only an approximation. 

How to calculate Rule of 70?

To begin, determine the investment's yearly rate of growth. Then, divide that growth rate by 70. The figure you're left with is about the number of years it will take for your investment to double in size. Here's an example to demonstrate the procedure:

Imagine an investor who owns a retirement fund with a 7% yearly return. The Rule of 70 can be used by the investor to anticipate how long it will take for their portfolio to double in value. 

This estimate can assist the investor in making informed decisions on retirement planning and investing strategy.

Rule of 70 and cryptocurrencies

Even though the Rule of 70 is quite prevalent in the traditional financial market, how effective can it be for cryptocurrencies? The Rule of 70 will be beneficial for cryptocurrency staking, where users will be provided with a fixed rate of return annually.

However, the Rule of 70 can't be applied to general cryptocurrency investment. This is due to the fact that a basic cryptocurrency investment doesn't promise a fixed rate of return. Due to the volatile nature of cryptocurrencies, the Rule of 70 can't be effectively applied to digital assets.

Pros and cons of Rule of 70 


  • Users don't need to have special knowledge or expertise to apply the rule of 70.
  • It will help to set financial goals as it can provide an estimate of when an investment will double.
  • The Rule of 70 can be applied to various assets and financial instruments.


  • Factors including inflation, fluctuating interest rates, and taxes are not taken into account.
  • The Rule of 70 only applies to assets that compound annually and assume a constant rate of return. This is a drawback that separates the rule from cryptocurrencies.

In conclusion, while the Rule of 70 is a useful tool for determining investment doubling times, it should be utilized in conjunction with other analyses and criteria to make informed investment decisions.

 The fact that it cannot be applied to cryptocurrency investments is unquestionably a disadvantage of the Rule of 70. 


What assets can the Rule of 70 be applied to?

The Rule of 70 can be applied to various assets and financial instruments that compound annually, such as stocks, bonds, and mutual funds.

Is the Rule of 70 accurate?

The Rule of 70 is an approximation and does not account for fluctuations in the market. It should be used in conjunction with other analyses for accurate results.

Can the Rule of 70 be used for short-term investments?

The Rule of 70 is most useful for long-term investments because it provides an estimate of how long it will take for an investment to double.

Can the Rule of 70 be used in cryptocurrency field?

The Rule of 70 is not an accurate method for predicting the growth of a cryptocurrency investment due to its volatile nature.

How does Rule of 70 relate cryptocurrency staking?

Staking is the process of holding and verifying transactions on a proof-of-stake blockchain, and the Rule of 70 can be used to estimate the time it takes for staked assets to double in value.

Disclaimer: The content of this piece reflects the writer's opinion. This article is not intended to provide financial advice and is meant solely for entertainment and educational purposes. Investing in cryptocurrency involves significant risk. Capital is at risk, and returns are not guaranteed. Always conduct your own research.

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