Methodology
Every calculator on this site is built the same way: a documented formula, a working tool that runs in your browser, worked examples with real numbers, and a dated review. This page is the contract for how we do that.
What a tool page must include
We do not publish a calculator as a bare input box. A page is not allowed to go live unless it has all of the following:
- A working tool above the fold — instant, no signup, usable on a phone.
- Unique supporting copy (typically 800–1,500 words) that explains the math in plain English.
- The formula shown simply, plus two or three worked examples with numbers filled in.
- A short list of common mistakes that distort the result.
- Eight to twelve FAQ questions written as people actually search them.
- A visible reviewer, an updated date, and a link back to this page.
- Internal links to related tools and guides so you can keep going without hunting.
That bar exists because a calculator that ranks but does not teach is thin content. If we cannot meet it, the page stays unpublished.
How the math is implemented
Each tool's logic lives in a small, side-effect-free function (for example, profit after fees, staking with monthly compounding, isolated-margin liquidation). The on-page form only collects inputs and displays the function's output. We write unit tests for the edge cases that actually break traders: zero account size, a stop equal to entry, leverage of 1×, a win rate that would make Kelly negative.
When a result depends on an exchange rule — maintenance margin, fee schedule, unbonding period — we use a named preset (Binance USDT-M, Bybit, OKX, and so on) and show the rate we used. Presets are starting points. You can override them when your venue publishes a different figure.
Dated snapshots versus live NAV
Some tools are tables, not formulas: the RWA tracker and yield comparator, DePIN tracker, stablecoin dashboard, quantum-resistant tracker, and airdrop checker. Those rows are editorial snapshots with a last-checked date. They are not live NAV, live peg, live miner earnings, or an eligibility oracle. We would rather show a dated number (or no number) than a scraped feed we cannot stand behind. When a recurring data job exists, it will be named on this page. Until then, click the issuer.
Yields on tokenized Treasuries move with the bill curve and fund fees. Stablecoin pegs break in events, not in 20-minute JSON. DePIN rewards move with token price and local coverage. Treat the table as a map of what exists and what kind of risk it is, then verify on the primary domain.
Sources we treat as primary
We prefer sources you can click: exchange contract specs, network fee documentation, IRS publications for US tax treatment, and project docs for DePIN device costs. Marketing pages and unaudited "APY" dashboards are treated as claims to check, not as inputs. When a number is a snapshot (token price, typical gas, a 2026 staking yield), the page says so and dates it.
We do not scrape or republish another site's proprietary dataset as if it were ours. If a tool needs live data we do not yet have (funding-rate history, RWA yields), we either ship a transparent calculator with user-entered rates or we wait until we can document a recurring data job on this page.
Review and update cadence
New tools are reviewed by the editorial team against the checklist above before they ship. After launch we revisit a page when:
- A fee, maintenance margin, APY, or tax rule would change the worked example by a meaningful amount.
- A reader sends a correction we can verify (see contact).
- We add a related tool and the internal links or FAQ should point to it.
The "Last updated" date on each tool is the date of the last material change to the formula, presets, or the explanation — not a cosmetic bump.
What these tools are not
Nothing here is financial, investment, tax, or legal advice. Calculators estimate a result from the numbers you type. They cannot see your full book, your venue's exact insurance fund, or how a tax authority will treat your facts. If the decision is large, talk to a qualified professional and read the venue's own docs.
We cannot recover lost funds. We will never ask for a seed phrase, private key, password, or 2FA code. If a site or a message claiming to be us asks for those, it is not us.
How we make money, and how that is fenced off
Some tool pages include a contextual affiliate block — for example, tax software after a realized gain, or an exchange comparison after a futures-sizing tool. Those links may earn a commission at no extra cost to you. They do not change the formula, the worked examples, or the verdict on a review. Full rules: editorial policy and affiliate disclosure.
Reserved ad slots exist in the tool template. They stay empty until an ad network is connected. Ads will never cover the calculator or the primary result.
Corrections
If a formula, preset, or explanation is wrong, tell us which page, which number, and the primary source. We treat factual errors as a priority over new features.