Useful tools, ready when you are.

Inventory Stockout Event Rate Calculator

Measure demand events encountering no available stock under one event rule.

Inventory to Sales Ratio Calculator

Express average inventory at cost as a percentage of matching net sales.

Inventory Weeks of Supply Calculator

Estimate static forward stock coverage at a stated weekly unit-sales pace.

Math, Statistics & Probability

Inverse Variation Calculator

Calculate inverse variation with guided inputs, visible equations, substituted working, and model assumptions.

Invested Capital Turnover Calculator

Compare matching-period net revenue with average consistently defined invested capital.

Calculators

Investment Drawdown Calculator

Estimate annual cash draw from an investment portfolio.

Calculators

Investment Fee Impact Calculator

Compare compound ending value before and after a recurring annual fee.

Invoice Exception Rate Calculator

Measure processed invoices routed to a documented exception state.

Invoice Generator

Create an itemized invoice draft with discount, tax, notes, CSV export, and a printable report.

Enterprise IT

IP Address Plan Builder

Create a bounded, editable ip address plan builder from supplied enterprise IT data with transparent rules and operational safeguards.

Agriculture & Gardening

Irrigation Water Budget

Create a bounded, browser-local irrigation water budget with visible assumptions, review guidance, and downloadable output.

Quality Assurance

ISO Quality Audit Planner

Create a bounded, reviewable iso quality audit planner with visible assumptions, downloadable output, and accountable human review.