Introduction to Simple Interest Simulation

See how principal, annual rate, and time create equal yearly interest.

Interactive fraction laboratory

Interest caption and live values

Principal

Rate and time

Interest

Visual stage

Final amount

Visual step

Introduction to Simple Interest Simulation

Discover simple interest

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Simple interest is money earned or paid only on the original principal. Equal interest is added each year.

1 Identify P, r, t2 Convert the rate3 Calculate I = Prt4 Find final amount

The yearly interest stays equal because it is calculated from the original principal.

Experiment

Principal P

Annual rate r (%)

Time t (years)

Known interest (reverse mode)

Predict interest

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Interest history

Each change adds a point. Tracking a group highlights its contribution.