Run a DCF Valuation
Calculate the intrinsic value of a business using discounted cash flow analysis with a computed WACC.
Calculate Loan Amortisation
Generate a full amortisation schedule with monthly payments, interest, and principal breakdown for any loan.
Quick answer: Use the Financial Calculator tool through ToolRouter to calculate loan amortisation directly from Claude, ChatGPT, Microsoft Copilot, and OpenClaw — connect once, then drive it with plain-language prompts. No code required.
ToolComparing loan offers, planning cash flow around repayments, or understanding how much of each payment goes to interest versus principal — all of this requires accurate amortisation calculations. Most online calculators give a monthly payment figure and nothing more, which is not enough for financial planning or loan comparison.
Financial Calculator generates a complete amortisation schedule: every payment for the life of the loan, showing the principal reduction, interest charge, and remaining balance at each period. It also handles extra payment scenarios and calculates the time and interest savings from overpaying.
Mortgage borrowers, SME finance teams, and anyone comparing loan products use this to see the full cost of borrowing over time, not just the headline monthly payment.
How to calculate loan amortisation with Claude, ChatGPT, Microsoft Copilot, and OpenClaw
Connect ToolRouter
1Open connector settings Open Settings
2Add a custom connector with these details
Name
ToolRouterURL
https://api.toolrouter.com/mcp3Let Claude set you up Open Claude
Claude generates the amortisation schedule and then explores it with you. It calculates total interest paid over the loan life, shows what overpaying by £200 per month saves in interest and time, and compares two loan offers side by side — turning a repayment schedule into a tool for smarter borrowing decisions.
How to calculate loan amortisation
Once connected (see setup above), use the Financial Calculator tool — the same steps work with Claude, ChatGPT, Microsoft Copilot, OpenClaw, and any MCP client:
- Provide loan details: principal, interest rate, and term
- Ask Claude: "Generate a full amortisation schedule for this loan"
- Claude returns the complete schedule with total interest cost
- Ask: "What if I overpay by £300 per month? How much interest would I save?"
Example prompt
Try this with the Financial Calculator tool
Generate an amortisation schedule for a £250,000 mortgage at 4.5% over 25 years. Show the monthly payment breakdown for the first 12 months and the total interest paid over the full term. Then show what overpaying by £200/month would save.
Tips
- Ask Claude to show the crossover point where principal exceeds interest in each monthly payment
- Compare two different interest rates to quantify the cost of a higher-rate loan over the full term
- Ask about the impact of a one-off lump sum overpayment at year 5 or year 10
Frequently Asked Questions
How do I calculate loan amortisation with an AI assistant?
Generate a full amortisation schedule with monthly payments, interest, and principal breakdown for any loan. Connect the Financial Calculator tool to Claude, ChatGPT, Microsoft Copilot, and OpenClaw through ToolRouter, then ask the assistant in plain language. For example: Provide loan details: principal, interest rate, and term Ask Claude: "Generate a full amortisation schedule for this loan"
Which AI assistants can calculate loan amortisation?
Claude, ChatGPT, Microsoft Copilot, and OpenClaw can all calculate loan amortisation using the Financial Calculator tool through ToolRouter, with no API keys or coding required.
What does the Financial Calculator tool do?
Run professional-grade financial calculations — DCF valuations, WACC, bond pricing, options, and portfolio metrics.
Related Use Cases
Price Bonds and Options
Calculate fair value for bonds using yield-to-maturity and for options using the Black-Scholes model.
Analyse Portfolio Metrics
Calculate Sharpe ratio, volatility, drawdown, and return attribution for an investment portfolio.