Diverse-Eth-Calculator is a free, open source web utility built for Ethereum and Solidity developers who regularly need to convert between ETH, Gwei and Wei, or check whether an address is well formed. It runs in the browser, so there is nothing heavy to set up, and it can be installed on a Windows PC as an app.
The project was created to take the repetitive arithmetic out of everyday development work. Instead of counting decimal places by hand when writing tests or reading transaction values, you enter a number and get the converted result immediately. The tool is also a reasonable choice for students and newcomers who want to understand how Ethereum's smallest units relate to each other.
What Is an Ethereum Unit Converter and Why Developers Use One
Ether is divided into smaller units so that very small amounts can be expressed as whole numbers. One ETH equals 10^18 Wei, and Gwei is a convenient middle unit equal to 10^9 Wei. Because these numbers are large and powers of ten are easy to misplace, even experienced developers make errors when converting by hand.
A dedicated converter reduces that risk. It is especially useful when reading transaction receipts, inspecting storage values returned by a contract, or setting gas parameters. A quick check before deploying can prevent an accidental transfer that is a thousand times larger than intended.
Who Diverse-Eth-Calculator Is For
The project is aimed mainly at developers who write Ethereum smart contracts in Solidity or build front ends with JavaScript and TypeScript. Someone writing unit tests for a token contract, for example, often needs to express balances in Wei and compare them with human-readable amounts. The calculator gives a fast way to do that without opening a terminal or a REPL.
It is also useful for technical writers, auditors reviewing numbers in a report, and learners following Ethereum tutorials. Anyone who wants a simple, transparent tool that does one job well will find it practical.
- Smart contract developers checking test values
- Front-end engineers formatting balances for display
- Students learning how Ethereum units relate
- Reviewers verifying figures in documentation
How the Tool Fits Into a Typical Ethereum Workflow
In a normal development session, you might write a contract, run tests, deploy to a testnet and then interact with it from a script. At several points you need to translate numbers between units. Keeping a converter open in a browser tab or a pinned app window saves time at each of those points.
Because the project is open source, teams can also host their own copy. A company that prefers not to rely on a public website can deploy the same code on an internal server, keeping its workflow inside its own infrastructure.
Is a Browser-Based Calculator Accurate Enough for Development?
Accuracy matters when dealing with large integers, and JavaScript numbers can lose precision beyond about 15 significant digits. Tools built on ethers.js handle big numbers using BigInt-style arithmetic, which avoids that problem. The project's use of ethers.js formatting is therefore an important detail to understand.
Still, a converter is a helper, not a substitute for testing. Verify critical values in your own code and tests, and treat the calculator as a quick reference during development.
Key features
ETH to Wei and Back
ETH to Gwei and Back
Arbitrary Decimal Conversion
ethers.js Formatting
Address Validation
Progressive Web App Support
Supported coins
The documentation references Ethereum (ETH) as the supported network and asset. The tool is focused on unit conversion for the Ethereum ecosystem rather than on any particular token list.
How to install Diverse-Eth-Calculator on Windows
- 1
Open the Official Site or Source Repository
Start from the deployed version of the tool or the project's GitHub repository at github.com/DiverseSolutions/Diverse-Eth-Calculator. Download only from the official website or the GitHub repository, and avoid copies hosted by third parties.
- 2
Open the App in Microsoft Edge or Chrome
Visit the web version of the calculator in a Chromium-based browser. Progressive web apps are installed from the browser, so this step is required before you can add the tool to your system.
- 3
Install It as an App
Use the browser's menu to choose the option to install or create an app shortcut (often labeled Install Diverse-Eth-Calculator or Apps > Install this site as an app). Confirm the prompt, and the tool will open in its own window.
- 4
Pin or Launch From Start
After installation, the app appears in the Start menu. You can pin it to the taskbar for quick access. Launching it from the taskbar keeps it separate from your regular browsing sessions.
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Build From Source If You Want to Self-Host
If you prefer to host your own copy, clone the repository and follow the instructions in the project's README. Building from source requires a JavaScript toolchain on your machine; those tools are needed only for development and are not required to use the ready-made web version.
System requirements
- A modern Windows PC with a Chromium-based browser such as Microsoft Edge or Google Chrome, which supports installing progressive web apps
- An internet connection to load the web version, unless you use a self-hosted copy
How to use Diverse-Eth-Calculator
Using the calculator is straightforward. Once you have it open in the browser or as an installed app, you enter a value into one of the input fields and read the converted result. The interface is designed around a few core conversions, so you do not need to learn a complicated workflow.
A typical session looks like this:
- Enter the amount you want to convert in the relevant input field, such as an ETH value or a Wei value.
- Choose the conversion you need, for example ETH to Wei or Gwei to ETH.
- Read the result and copy it into your code, test file or notes.
- For address checks, paste the address into the validation field and confirm whether it is well formed.
- For custom decimal work, set the number of decimal places that matches your token or contract, then convert.
- Repeat as needed, keeping the app open while you work.
Pros & cons
- Free to use and open source, so you can read exactly how the conversions are performed
- Covers the most common Ethereum conversions in one place: Wei, Gwei and ETH
- Supports arbitrary decimal conversion for tokens with non-standard precision
- Includes an address validity check that helps catch typos early
- Installable as a PWA on Windows and other platforms, with no separate download required
- Self-hosting is possible for teams that prefer their own infrastructure
- It is a focused utility, not a full development environment, so it will not replace tools like Hardhat or Foundry
- The documentation mentions only Ethereum, so it is not a general multi-chain tool
- Installation as an app depends on a Chromium-based browser that supports PWAs
- Public web versions depend on the availability of the hosting service
- Development activity is limited; check the repository before relying on it for long-term projects
Is Diverse-Eth-Calculator safe?
Diverse-Eth-Calculator is a conversion tool and does not manage wallets or private keys, but good habits still apply. Download the code or access the web version only from the official GitHub repository or the project's listed website. Avoid unofficial copies, since a modified version could display misleading numbers or contain malicious code.
If you clone and build the source yourself, review the code and check the repository's commit history. Never enter a seed phrase or private key into any calculator or web utility, regardless of who hosts it. A conversion tool has no legitimate reason to ask for them. Note that the project's last code update was in May 2022, so verify that the version you use still meets your needs before relying on it.
- Official source only. Download from github.com/DiverseSolutions/Diverse-Eth-Calculator. Ignore ads and lookalike domains.
- Check the SHA-256. Compare the installer hash with the value the developer publishes before running it.
- Never share your seed phrase. No developer, support agent or website — including CryptApps — will ever ask for it.
Alternatives
Diverse-Eth-Calculator is narrower in scope than most of the tools listed alongside it. Frameworks such as Foundry and Anchor provide compilers, testing environments and deployment pipelines, while the Solidity compiler focuses on turning contract code into bytecode. A calculator like this one does not replace any of them.
Where it stands out is simplicity. If you only need to convert units or validate an address without setting up a project, a lightweight web tool is faster than launching a full IDE. For larger tasks, pair it with a framework and use the calculator as a quick reference.
Specifications
- Price
- Free
- Type
- Open source
- License
- —
- Latest version
- —
- Last update
- 8 May 2022
- Windows support
- Likely (builds for Windows; check releases)
- Source code
- github.com/DiverseSolutions/Diverse-Eth-Calculator
Frequently asked questions
Yes. The tool is free to use and its source code is open source on GitHub. You can use the deployed web version at no cost or host your own copy on a server you control.
Yes. The project is a progressive web app, so you can open it in a Chromium-based browser such as Edge or Chrome and choose the option to install it as an app. It will then run in its own window and can be pinned to the taskbar.
It converts between ETH and Wei, between ETH and Gwei, and supports arbitrary decimal conversion for custom precision. It also formats values using ethers.js and checks whether an address is valid.
The calculator does not manage wallets or keys, so it does not need your seed phrase or private key. Use only the official site or the GitHub repository, and never enter sensitive credentials into any conversion tool.
The documentation references Ethereum (ETH) as the focus. For other networks that use similar decimal units, you may still find the arbitrary decimal conversion useful, but check the unit definitions for that network first.
Ethereum records values as integers in Wei because fractional amounts are not stored on-chain. Gwei is a practical unit for gas prices. Converting correctly prevents errors when setting transaction values or reading contract data.
Yes. Because the project is open source, you can clone the repository and deploy your own copy. This is useful for teams that want the tool available on internal infrastructure.
The last recorded code update was in May 2022. Review the repository's recent activity and open issues before relying on it for critical work, and consider whether the features you need are already covered.
Verdict
Diverse-Eth-Calculator is a small, practical tool for Ethereum developers who need quick, reliable unit conversions and address checks. It is free, open source and installable on Windows as a progressive web app. Developers who write Solidity or ethers.js code will find it handy as a reference during testing and debugging. Those looking for a full development environment should pair it with a framework, and everyone should check the repository's current status before depending on it for production work.