How do I simulate an annuity?

Open this page and use the live Bond Pricing tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.

Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.

Can I use my own numbers?

Absolutely — every input is adjustable, and with data import you can drive an annuity from your own measurements.

Use case · powered by Bond Pricing

Bond Pricing for an annuity

Simulate an annuity live in your browser. This runs the real Bond Pricing solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

For:Students Researchers Educators Engineers Hobbyists & Makers K-12 Students First Responders

Bond Pricing & DurationLive

price · yield · interest-rate risk

Controls

Presets

Face value ($)

Coupon rate

Yield to maturity

Years to maturity

A bond's price is the present value of its coupons and face value, discounted at the yield. Price moves inversely to yield along a convex curve. Duration measures that sensitivity — a modified duration of 8 means roughly an 8% price drop per 1% rise in yield. Educational tool, not investment advice.

▶ Run in Python

Data Inspector

Price$1081.76

Premium/discountpremium

Macaulay duration8.08 yr

Modified duration7.92

Governing equation

P = t = 1 \sum 20 \frac{25.00}{( 1 + 0.0200 ) ^{t}} + \frac{1000}{( 1 + 0.0200 ) ^{20}} = $1081.76

Reading this result: The coupon beats the 4.0% yield, so the bond sells at a premium — about 8.2% over par — and its 7.9 modified duration is the % price drop per +1% yield.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

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About this simulation

The full Bond Pricing tool models an annuity with the same numerics engineers and scientists use — running entirely client-side. Change any parameter and the result updates in real time, so you can build intuition, check a design, or teach the concept without spreadsheets or installs.

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Other ways to simulate an annuity

Black-Scholes for an annuity Option Payoff for an annuity Monte Carlo (GBM) for an annuity Efficient Frontier for an annuity Value at Risk for an annuity Compound Interest for an annuity

Frequently asked questions

How do I simulate an annuity?: Open this page and use the live Bond Pricing tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.
Is it free?: Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.
Can I use my own numbers?: Absolutely — every input is adjustable, and with data import you can drive an annuity from your own measurements.