Finance Tools
Business Finance Calculators
31 free, instant calculators built for SME owners, finance directors, brokers, and advisers. Estimate repayments, assess funding availability, model working capital, and evaluate key financial ratios - all in one place.
Every calculator includes clear methodology, plain-English explanations, and the assumptions behind the numbers. Use them to plan, compare, and prepare before progressing to a formal funding conversation.
Lending & Repayment
Estimate monthly repayments, total interest costs, affordability limits, and amortisation schedules for business loans and term lending.
Business Loan Calculator
Estimate monthly repayments, total interest, and total cost for a business loan.
Loan Repayment Calculator
Full amortisation schedule with principal and interest breakdowns.
Loan Interest Calculator
Calculate total interest payable across the full loan term.
Loan Affordability Calculator
Estimate maximum borrowing based on income, debt, and target DSCR.
Finance Cost Per Month
Effective monthly cost of a facility including arrangement fees.
Debt-to-Income Calculator
Calculate DTI ratio with colour-coded assessment bands.
Loan-to-Value Calculator
Calculate LTV percentage with lender-perspective assessment.
Asset & Commercial Finance
Model hire purchase, leasing, balloon payments, bridging loans, and merchant cash advance scenarios.
Asset Finance Calculator
Monthly repayments for equipment or vehicle finance with deposits and balloon.
Hire Purchase Calculator
Monthly HP payment including deposit, VAT options, and total cost.
Lease Payment Calculator
Monthly lease payments with residual value and total lease cost.
Balloon Payment Calculator
Structure a balloon/bullet payment with reduced monthly repayments.
Bridging Loan Calculator
Total bridging cost including interest, fees, and LTV assessment.
Merchant Cash Advance
Total repayable, effective APR, and estimated payback period.
Invoice Finance
Estimate funding availability, factoring costs, and advance rates against your debtor book.
Invoice Finance Calculator
Estimate funding based on debtor book, advance rates, and fees.
Debtor Book Value
Fundable value of your debtor book after eligibility criteria.
Factoring Cost Calculator
Annual factoring cost including service and discount charges.
Invoice Discounting Availability
Available funding after ineligibles and advance rate applied.
Advance Rate Calculator
Compare funding at different advance rates side-by-side.
Working Capital & Operations
Analyse your cash conversion cycle, receivables, payables, and inventory efficiency to identify funding gaps.
Working Capital Calculator
Model short-term funding requirements from assets and liabilities.
Cash Flow Forecast
6-month inflow/outflow forecast to identify cash gaps.
Working Capital Cycle
Cash conversion cycle from receivables, inventory, and payables.
Accounts Receivable Days
Days Sales Outstanding (DSO) with 5-tier benchmark assessment.
Accounts Payable Days
Days Payable Outstanding (DPO) with 5-tier assessment.
Inventory Days Calculator
Days Inventory Outstanding (DIO) to gauge stock efficiency.
Business Performance & Valuation
Measure profitability, growth trajectories, and implied valuations to support strategic and funding decisions.
Net Profit Margin
Bottom-line profitability with 5-tier assessment.
Gross Margin Calculator
Gross profit percentage before overheads and fixed costs.
Business Growth Rate
Year-on-year revenue and profit growth rate analysis.
Revenue Run Rate
Annualised revenue estimate from any period length.
EBITDA Multiple Calculator
Enterprise value and equity value from EBITDA and multiple.
Financial Ratios
Key financial metrics used by lenders and analysts to assess debt capacity, coverage, and business health.
Why use the Spark Intel calculators?
Business finance decisions benefit from context. Before approaching a lender, applying for funding, or evaluating a new facility, it helps to run the numbers yourself. These 31 calculators give you a structured way to do that quickly and clearly.
Each calculator is designed to be more than just a widget. The pages include plain-English explanations of the formulas used, definitions of key terms, assumptions behind the outputs, and frequently asked questions. This means you get both the number and the understanding behind it.
Whether you are an SME owner assessing how much you could borrow, a broker comparing indicative structures, or a finance director modelling working capital requirements, the Spark Intel calculator library is built to support more informed conversations.
All results are indicative estimates. They are intended to support planning and preparation, not to replace formal advice or lender-specific quotations.
Frequently asked questions
Spark Intel offers 31 free calculators spanning lending and repayments, asset and commercial finance, invoice finance, working capital and operations, business performance and valuation, and financial ratios including DSCR, interest coverage, gross margin, and more.
Yes. All Spark Intel calculators are free, require no registration, and provide instant results based on the inputs you provide.
These calculators are designed for SME owners, finance directors, brokers, lenders, and advisers who need quick indicative estimates before progressing to a formal conversation.
No. The results are indicative estimates for planning purposes only. Actual terms, rates, and outcomes will depend on individual circumstances and lender criteria.
Ready to move from estimates to action?
When you are ready to explore formal funding options, speak to the Spark team or visit Spark Finance.