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.
Send exactly USDT
After sending, paste your transaction ID (TxID / hash) from your wallet or exchange withdrawal. Payment is verified on-chain and your download opens instantly.
Paying with PayPal? Your download link is emailed to your PayPal address within 24h — or email your receipt for faster delivery.
Paid more than 48h ago or trouble verifying? Email your TxID with order code and we deliver within 24h.