Do you store my numbers?

No. Each calculator runs locally.

Is this tax or lending advice?

No. Arithmetic with documented assumptions on each page.

Fintomat / Investment Calculator

Finance · Calculators · Runs in your browser. Nothing is sent to a server.

Lump sum plus contributions grown over time.

Principal

Rate %

Years

Monthly add $

Results appear here.

Type the problem — numbers, a formula, or the loan fields.

Press Calculate. The answer is computed on this page.

Use the explanation, chart or schedule to check the result.

Lump sum plus contributions grown over time. Figures stay in this browser. Not professional advice.