Translate shares and per-share price through a forward or reverse split ratio.
It makes the prices, cash flows, rates, time periods, weights, and model conventions explicit so you can inspect an entered scenario without hidden live-market assumptions.
Calculation structure
Follow the stated model and units
New shares = old shares × new ratio units ÷ old ratio units. New theoretical price = old price ÷ ratio.
Visual explanation
See how the inputs become the result
Capital and cash flowstime and rate→entered modelScenario resultChanging one assumption changes the model—not the marketNew shares = old shares × new ratio units ÷ old ratio units. New theoretical price = old price ÷ ratio.
Read the estimate correctly
Use the result within its boundaries
A 2-for-1 split turns 100 shares at 40 into 200 shares at a theoretical 20.
The theoretical calculation preserves total value and excludes cash-in-lieu, fractional-share, price-movement, tax, and fee effects.
Quick guide
How to use this calculator
Enter the exposure, market, accounting, probability, rate, or risk assumptions named by the fields.
Use consistent currencies, periods, share units, and percentage conventions.
Interpret the output only within the displayed model and limitations.
Calculation method
Calculation method
New shares = old shares × new ratio units ÷ old ratio units. New theoretical price = old price ÷ ratio.
Fixed decimal scalar arithmetic remains exact until display. Square-root and compound projections are explicitly approximate and reject non-finite results.
Worked example
Worked example
A 2-for-1 split turns 100 shares at 40 into 200 shares at a theoretical 20.
New shares = old shares × new ratio units ÷ old ratio units. New theoretical price = old price ÷ ratio.
Supported inputs
Precision and limits
Visible input limits
Fixed decimals accept 30 digits and 12 decimal places, with absolute values capped at 1e12 per input and general rates capped at 1000%. Formula-specific shares and probability limits are validated separately.
International scope
No currency, exchange, broker, live security data, accounting standard, tax jurisdiction, contract specification, or regulatory disclosure is selected automatically.
Decision boundary
Outputs are arithmetic scenarios, not forecasts, advice, suitability assessments, trading signals, fair-value opinions, risk guarantees, or recommendations.
Calculator-specific assumptions
The theoretical calculation preserves total value and excludes cash-in-lieu, fractional-share, price-movement, tax, and fee effects.
