Free safety stock calculator using the simple formula — (max lead × max daily sales) − (avg lead × avg daily sales) — with the statistical Z method shown side by side.
Free reorder point calculator: average daily sales × lead time in days + safety stock — type your buffer or compute it with the simple max-and-average formula.
Free PayPal fee calculator with gross-up: see the fee on a payment you receive, or the exact amount to charge so the net you keep is the number you want.
Free Mercado Libre net payout calculator for Mexico: sale price minus the selling commission, the fixed per-unit fee on low-priced items and the shipping you absorb.
Free LTV:CAC ratio calculator: lifetime value divided by acquisition cost, with plain-English interpretation bands (rules of thumb, not laws) and an optional payback period.
Free inventory turnover calculator: cost of goods sold divided by average inventory gives turns per year and days to sell — with start/end averaging built in.
Free conversion rate calculator for e-commerce: sessions and orders to CR%, plus revenue for average order value and revenue per session — the three numbers that run a store.
Calculadora de LTV gratuita: ticket medio × compras al año × años de permanencia, con opción de aplicar el margen bruto para comparar el beneficio real con tu CAC.
Free LTV calculator: average purchase value × frequency × customer lifespan, with a gross-margin toggle so you can compare profit LTV — not revenue — with your CAC.
Free CAC calculator with a channel grid: spend and new customers per channel, per-channel CAC, and the blended CAC to compare against your customer lifetime value.
