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EconomiciumFree tools for traders.

Free. No signup. No paywall.

Trading tools that show their formula.

Thirty-six calculators and market dashboards for traders and anyone who follows the economy. Every tool prints the exact formula it uses, names its data source, and does the maths in your browser. Nothing you type leaves the page.

Where the market sits right now

Cached from official and public sources, refreshed through the day, not streamed tick by tick. For the full picture see today's brief.

Size trades and protect the account.

Plan levels, mechanics and review.

Pass the evaluation, keep the account.

Currencies, carry and positioning.

Perps, leverage and sentiment.

Live economic data and dashboards.

Today in markets (daily brief)

The trading day on one page: releases due in the next 48 hours, the yield curve, crypto sentiment, perp funding extremes and the macro backdrop, assembled from our cached public data.

Economic calendar

Every market-moving release, with the expected direction, a countdown and reminders you can export to your own calendar.

Real wage calculator

Did your raise beat inflation? Compare any two salaries against official BLS consumer price data and see whether you gained purchasing power or quietly lost it.

US inflation calculator

What any dollar amount since 1913 is worth today, from official BLS consumer price index data, with the purchasing-power view and the compound annual rate.

Market hours & session clock

Is the market open right now? Live status and countdowns for NYSE, Nasdaq, London, Tokyo and Hong Kong, the 2026 US holiday calendar and forex session overlaps.

US national debt clock

A live estimate of the US national debt with debt-to-GDP, debt per person, the annual interest bill, the public vs intragovernmental split and 20 years of history, from official Treasury data.

US recession indicators

A scoreboard of five well-known recession signals, the Sahm Rule, yield-curve inversion, recession probability, Chicago Fed activity index and jobless claims, each against its recognised threshold.

Central bank interest rates

Current policy rates for the Fed, ECB, Bank of England, Bank of Canada and RBA, each with its last-change date and the path of moves, from every bank's own official data.

US yield curve & inversion tracker

Is the curve inverted right now? Live 10Y-2Y and 10Y-3M spreads with five years of history, from official Federal Reserve data.

How these tools are built

I trade, and I got tired of calculators that hand you a number and hide the arithmetic. So every tool here prints the formula it used and works through a real example next to it. Risking 1% of a 5,000 dollar account is 50 dollars; the position size calculator shows you exactly how it turned that 50 dollars into a lot size, not just the lot size. If the maths is wrong you can catch it, because it is on the page.

Where a tool leans on data, the data is public and the source is named. Inflation and real-wage numbers come from the US Bureau of Labor Statistics. The yield curve and recession signals come from the Federal Reserve's own series through FRED. Currency rates are the European Central Bank's daily reference rates. Central bank policy rates come from each bank's own releases. Futures positioning is the CFTC's weekly Commitments of Traders report. Nothing here is scraped from a vendor whose terms forbid showing it to you, which is why you will not see live stock or crypto prices dressed up as our own.

The market dashboards read from a cache we refresh on a schedule, not from your browser hitting an exchange. That keeps the pages fast and keeps us inside the licensing rules, but it also means a funding rate or a sentiment score is a recent snapshot, not a tick. Each page says when it was last updated, so you always know how fresh the number is.

The calculators are different again: they run entirely in your browser. Your account balance, your risk, your open positions, your broker statement, none of it is sent to us or stored anywhere. The trading journal and the statement analyzer parse your file on your own machine and forget it when you close the tab. There is no account to make and no email to give.

Learn how the economy works

All explainers →

Plain-language explainers for how inflation, the Fed and the markets actually work. No jargon, no paywall.