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Inventory Days Calculator

Compute the average number of days your company holds stock before selling it to customers.

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Calculation Parameters

Specify your inputs below.

Calculated Result

Inventory Days (Days Sales of Inventory) 60.8 days
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Expert Tip

A lower number of inventory days means stock is sold quickly, lowering warehouse storage fees and capital tie-up.

How this Calculator Works

Inventory Days measures supply chain efficiency by dividing inventory holdings by total product costs and multiplying by period days.

Formula & Methodology

Inventory Days = (Average Inventory / COGS) * Days

Step-by-Step Calculation Example

Here is a step-by-step example showing how the calculations are performed:

If Average Inventory = $15,000, COGS = $90,000, and Period = 365 Days: - Inventory Days = ($15,000 / $90,000) * 365 = 60.83 days

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Detailed Insights & Expert Guide

ℹ️ About this Calculation

This business planning and financial management calculator analyzes operational profitability, cash flow runways, unit economics, and corporate growth performance based on standard managerial accounting and SaaS financial models.

Variable Glossary

Input

Financial Metrics

Revenue, fixed/variable costs, ARPU, CAC, churn rate percentage, or working capital inventory balances.

Parameter

Performance Ratio

Customer Lifetime Value (LTV), Monthly Recurring Revenue (MRR), break-even volume, or payback period duration.

How to Calculate Step-by-Step

1

Step 1

Input your business financial statements, unit sales prices, or marketing expense figures.

2

Step 2

Select reporting timeframes (monthly, quarterly, annual) or operational benchmark factors.

3

Step 3

View calculated margin ratios, burn rate projections, payback milestones, or profitability indexes.

FAQ

What is a healthy LTV to CAC ratio for subscription businesses?
A target LTV:CAC ratio of 3:1 or higher is generally considered healthy for SaaS and subscription models, indicating sustainable marketing ROI without overspending on acquisition.
How is the Break-even point calculated?
Break-even Units = Fixed Costs / (Price per Unit - Variable Cost per Unit). It determines the sales volume required to cover total operational expenses without profit or loss.
Can online business calculators replace professional financial auditing?
No. These calculators provide strategic modeling and decision support. Formal financial reporting, tax planning, and GAAP/IFRS audits require a certified public accountant (CPA) or financial advisor.