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The BagEngine Library: Tools, Embeds and Cited Data

Everything BagEngine has built that you can actually take away with you. Run a tool, drop a widget on your own site, or cite a dataset in your own work.

Use

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Interactive tools. Free, no sign-up, they run in your browser.

Options Profit Calculator, Free P&L, Greeks & Live Chain

Free options profit calculator with Black-Scholes Greeks, live options chain lookup, time decay curve, breakeven prices, and multi-leg support for…

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Amazon Break-Even Calculator: Free for 2026

Find exactly how many units to sell before you profit. Includes profit curve chart, scenario comparison, and time-to-profitability estimate.

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Crypto Tax Calculator: FIFO, LIFO, HIFO (2026)

Free crypto tax estimator. Enter trades, compare FIFO/LIFO/HIFO tax liability, see state taxes, and get tax-loss harvesting tips.

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FBA Profit Calculator: Free, Updated for 2026

Calculate true profit per unit with 2026 FBA fees, referral fees by category, PPC costs, storage, and returns. Free, no login, instant results.

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Options Profit Calculator: Free Greeks and P&L (2026)

Free options calculator with Black-Scholes Greeks, live chain lookup, time decay curves, and multi-leg support for spreads, iron condors, and…

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Retirement Calculator: Monte Carlo Simulation (2026)

Will you make it to retirement? Free Monte Carlo simulation with Social Security estimates, three savings levers, and probability outcomes.

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Amazon Seller Benchmarks: Compare Your Metrics (2026)

Compare your FBA margins, revenue, and metrics against anonymous seller benchmarks by category. See where you stand vs other Amazon sellers. Free.

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Amazon Seller Tool Stack Builder: Free Quiz (2026)

Answer 5 questions, get a personalized FBA tool stack with exact monthly costs. Every recommendation links to our in-depth review. Takes 60 seconds.

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Stock Valuation Screener: Free Peer Comparison (2026)

Enter any ticker and see how it ranks vs sector peers on P/E, P/S, P/B, margins, and growth. Free relative value score with no login required.

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Embed

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Put any of these on your own site with one snippet. They resize themselves and credit this site.

Cite

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DOI-backed research you can cite. Every figure carries its own method and capture date.

Across the network

3

BagEngine is one property in the Lattice network. Datasets from every property are indexed together.

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