Small calculators that answer real operating questions. Everything runs in your browser.
Estimate your monthly LLM API bill from tokens per request and request volume, with editable per-model rates.
Weigh hours saved against tool costs and setup time; get payback period and first-year net.
Paste text, get an instant token estimate and the cost at your model's rate. Runs entirely in your browser.
Work backward from the income you want to a real hourly rate, accounting for expenses, taxes and hours you can actually bill.
Enter the invoice amount, due date and payment date to get the exact late fee, whether you charge a monthly rate, an annual rate or a flat fee.
See how many hours a month you save by creating content in batches instead of one piece at a time, and what that time is worth at your rate.
Turn contacts entering a sequence into replies, meetings and deals, then weigh the revenue against your monthly cost to get real ROI and cost per meeting.
Enter last month's MRR plus new, expansion, contraction and churned MRR to get ending MRR, gross churn, net churn and net revenue retention in one pass.
Compare the fully-loaded cost of hiring against the setup and running cost of automating, and get a payback period plus a straight recommendation.
Turn posting frequency, reach, engagement and click-through into a real monthly lead estimate, plus how many posts a week it takes to hit a lead goal.
See the real monthly savings from caching a repeated system prompt or context block, at your provider's cache discount and how often the cache actually hits.
Compare a self-hosted VPS against n8n Cloud's plans at your real execution volume, with your maintenance time priced in, to see which one actually costs less.
Turn your zap or scenario structure into a real monthly task/operation count, apply the AI-step multiplier, and see what it costs at your plan's rate.
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