Methodology
Working Capital Calculator — Methodology
Working capital is current assets minus current liabilities. Current ratio is current assets divided by current liabilities. At $150,000 in current assets and $80,000 in current liabilities, working capital is $70,000 and the current ratio is 1.88x — comfortably above the 1.5 threshold most lenders require.
Last reviewed:
What this calculator computes
- Calculates working capital (current assets − current liabilities)
- Current ratio with bank-lending threshold flag (1.5x)
- Health banding from stressed through healthy to over-capitalised
- Region-aware currency formatting
Step-by-step calculation
Find your working capital and current ratio from balance-sheet figures, then check whether you clear the standard bank-lending threshold.
Add up current assets
Total cash, accounts receivable, inventory, and prepaid expenses — anything convertible to cash within 12 months.
Add up current liabilities
Accounts payable, short-term debt, accrued expenses, taxes due, and the current portion of long-term loans.
Read the working capital and current ratio
The calculator subtracts to find working capital and divides to find the ratio.
Check the bank-readiness flag
A current ratio of 1.5 or higher is the conventional floor for working-capital lending.
Assumptions and overrides
Standard accounting formula. The 1.5 bank-readiness threshold is conventional across US, UK, and SA commercial lending. Stress-testing the ratio with a 50% inventory write-down is recommended before any bank application.
Every region default on the calculator is editable. If your effective rate, fee, or threshold differs from the headline figure shown, type your own number into the field — the calculator recomputes instantly without leaving this page.
Review cadence and corrections
This methodology and the underlying rate defaults are reviewed at least annually, and immediately following any change to the headline rate from IRS, HMRC, or SARS. Every substantive update is recorded on the public changelog. Spotted an error? See the corrections policy for how to report it.
See the full editorial policy for the standards every page on BusCalcTools is held to.
Use the calculator
Open the Working Capital Calculator to put this methodology to work. Or browse other Break-Even & Cash Flow calculators.
Written by
James BlanckenbergFounder, BusCalcTools
Founder of BusCalcTools and FinnCalc. Builds practical financial calculators for small business owners and freelancers across the US, UK, and South Africa.
Editorial review by: James Blanckenberg, Founder & Editor
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