CRYPTO INVESTING

Crypto Investing Tools & Guides

The calculations behind everyday crypto investing: cost basis for tax reporting, dollar-cost averaging versus lump sum, market cap math, and what Ethereum gas fees actually cost you.

10 Expert Articles
18 min Avg. Read Time
10 Total Articles
Jul 18, 2026 Latest Published
18 min Average Reading Time
Ongoing Updated Regularly

Cost Basis, Market Cap, and DCA: The Numbers Behind Crypto Investing

Crypto investing generates a lot of numbers that matter come tax season or exit time, and most of them are easy to get wrong. This category focuses on getting the calculations right: cost basis, trading profit, market cap, and gas fees.

On cost basis, you'll find a full explanation of why cost basis matters for crypto tax reporting, how to calculate your average cost basis across multiple buys, and the most common crypto profit calculation mistakes people make when they skip this step entirely. On strategy, we compare dollar-cost averaging with lump-sum investing and walk through how DCA actually works in practice.

There's also a plain-language look at how market cap works and why price alone is a misleading way to compare two coins, including the classic thought experiment of what happens if a smaller coin reached Bitcoin's market cap. Rounding things out, two guides explain why Ethereum gas fees rise and fall throughout the day and how to convert those gas fees into a real USD cost before you confirm a transaction.

All Crypto Tools Articles

10 in-depth guides, updated regularly.

How to Calculate Crypto Trading Profit Correctly - 100 Calculator Crypto Tools Guide

How to Calculate Crypto Trading Profit Correctly

Learn how to calculate your real crypto trading profit, including exchange fees, cost basis methods, and the difference between realized and unrealized gains.

100 Calculator Crypto Team
15 min read
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What If Your Coin Reached Bitcoin's Market Cap? - 100 Calculator Crypto Tools Guide

What If Your Coin Reached Bitcoin's Market Cap?

Learn how to calculate what your coin's price would be at Bitcoin's market cap, see real examples, and try our free Market Cap What If Calculator.

100 Calculator Crypto Team
13 min read
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Why Cost Basis Matters for Crypto Tax Reporting - 100 Calculator Crypto Tools Guide

Why Cost Basis Matters for Crypto Tax Reporting

Learn why cost basis matters for crypto tax reporting, how FIFO, LIFO, HIFO, and average cost methods compare, and how to track it accurately for every trade.

100 Calculator Crypto Team
13 min read
Read More
Common Crypto Profit Calculation Mistakes to Avoid - 100 Calculator Crypto Tools Guide

Common Crypto Profit Calculation Mistakes to Avoid

Learn the most common crypto profit calculation mistakes, from ignoring fees to mixing up cost basis, and how to calculate your real trading profit correctly.

100 Calculator Editorial Team
18 min read
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Featured Topics in Crypto Tools

Why Read Our Crypto Tools Guides

Built for Tax Season, Not Just Trading

Cost basis guides are written with tax reporting in mind, not just profit tracking, so nothing gets missed at filing time.

Corrects Common Market Cap Misreadings

We explain why price alone is misleading and how market cap actually compares two very different coins.

Turns Gas Fees Into Real Costs

Gas fee guides convert network fees into actual USD amounts, so you know what a transaction costs before you send it.

Updated as Networks and Tax Rules Change

Gas fee behavior and tax treatment both shift over time, so these guides are reviewed and kept current.

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