{"slug":"simple-interest","name":"Simple Interest Calculator","category":"fortune","tags":["growing","everyday"],"tagline":"I = P·r·t — and how far it diverges from compound interest over time.","endpoint":"https://xearno.tools/api/v1/tools/simple-interest","page":"https://xearno.tools/t/simple-interest","description":"Simple interest on a principal over time, with the side-by-side compound comparison that shows why the distinction matters more each year.","inputSchema":{"type":"object","properties":{"principal":{"description":"Principal","type":"number","minimum":0,"default":10000},"rate":{"description":"Annual rate (%)","type":"number","minimum":0,"maximum":100,"default":6},"years":{"description":"Years","type":"number","minimum":0.1,"maximum":100,"default":5}},"required":[],"additionalProperties":false},"methodology":["Simple: I = P × r × t. Comparison line: P × (1+r)^t with annual compounding."],"usage":"POST https://xearno.tools/api/v1/tools/simple-interest with a JSON body matching inputSchema."}