Spreadsheet calculators and planning tools

Free calculators and planning helpers for founders and finance teams who live in Google Sheets and Excel. When you need full statements, jump to our templates.

Explore spreadsheet templates for full workbooks, or open the Lexicon for clear definitions of the terms behind the math.

Built for real spreadsheet work

Search or filter to match the job in front of you—percentages and growth, descriptive stats, loan schedules, time and hours, retirement checks, currency reference rates, and more. Most tools include copy-ready Google Sheets and Excel snippets; finance results are illustrations, not advice.

Unit economicsLive
P/E ratio calculator
Share price and EPS—or net income and diluted shares for implied EPS—P/E multiple and earnings yield % with =price/EPS patterns for Sheets/Excel. Not live quotes, not forward data feeds.
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Unit economicsLive
Earnings per share calculator
Net income, preferred dividends, and common shares to basic EPS (or loss per share) with = (NI−pref) / shares for Sheets/Excel. Manual inputs, not live filings, not a dilution table.
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Unit economicsLive
NOI calculator
Annual gross rent, vacancy %, other income, operating expenses—effective gross income, net operating income (NOI), optional implied cap rate. Sheets/Excel patterns. Not debt, tax, or appraisal.
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Unit economicsLive
EBITDA calculator
Net income + interest + taxes + D&A, or EBIT + D&A; optional revenue for EBITDA margin %. Sheets/Excel. Not adjusted EBITDA, not GAAP filing or valuation advice.
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Unit economicsLive
Cap rate calculator
Unlevered cap rate (NOI ÷ value), implied value or implied NOI in one place; optional NOI from gross, vacancy, opex. Same-currency annual. Sheets/Excel. Not debt service, not appraisal, not a company cap table.
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Unit economicsLive
Invoice generator
Line items with qty × price, optional whole-invoice discount and one tax rate—subtotal, tax, total, TSV/Markdown copy and print for Sheets/Excel. Illustration only; not legal invoicing software.
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Unit economicsLive
PayPal fee calculator
Gross or target net, payment-type presets, optional +1.50% international add-on, and fixed fee by currency—processing fee, net, gross-up, and Sheets/Excel. Illustration; not a PayPal quote or official tool.
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Unit economicsLive
eBay fee calculator
Total sale on eBay.com (U.S.), category band, optional promoted listing %, and your costs—final value fee, per-order fee, fees total, net after fees, and profit. Illustration only; not an official eBay tool.
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Spreadsheet mathLive
Regex generator
Paste a pattern and sample text, toggle flags, and see matches locally. Copy-ready REGEXMATCH, REGEXEXTRACT, and REGEXREPLACE for Google Sheets; JavaScript engine with honest RE2 limits in the FAQ.
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