Startup and Fundraising

SAFE Conversion Calculator

Estimate SAFE conversion shares using the lower of a valuation-cap price and discounted next-round price.

Inputs5 editable fields
ScopeUser-entered business case
ModelStartup and Fundraising
Business calculator

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Replace the sample values with figures from one consistent business period or proposal.

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Change the sample inputs to match your records.

A precise commercial use

A review of safe conversion shows why start with the business event represented by the fields. Estimate SAFE conversion shares using the lower of a valuation-cap price and discounted next-round price. A later cutoff should be saved as another safe conversion run.

With the safe conversion cutoff fixed, record exclusions at extraction time. Reconstructing an old filter after the fact is rarely reliable.

Walk through the supplied values

The supplied demonstration uses SAFE investment = $500,000; Valuation cap = $8,000,000; Capitalization used for cap = 7e+06 shares; Next-round share price = $1.50; SAFE discount = 20%.

Save the initial run, change SAFE discount, and identify which output line explains the difference.

Collect compatible measurements

When SAFE investment changes, save a new comparison case. Use the same currency for safe investment. Reconcile the SAFE investment cutoff before interpreting movement in Valuation cap.

Against the defined safe conversion base, the file should preserve the raw value for Valuation cap. Label reversals affecting valuation cap. Explain why Valuation cap and Capitalization used for cap belong to one population.

Before rounding Capitalization used for cap, preserve its source precision. Identify whether capitalization used for cap is observed or forecast. Keep the treatment of Capitalization used for cap stable while stress-testing Next-round share price.

Keep the timestamp for Next-round share price with the saved output. Keep next-round share price on one reporting basis. Compare Next-round share price with SAFE discount after agreeing on both definitions.

Confirm SAFE discount with the founding team before calculation. State any allocation included in safe discount. Independently establish SAFE discount, then compare it with SAFE investment.

With the safe conversion cutoff fixed, use the Convertible Note Conversion Calculator to document convertible note conversion as its own management question.

Recalculate outside the browser

Conversion price is the lower of cap valuation divided by capitalization and next-round price times one minus discount.

The operating meaning of safe conversion begins here: conversion price is the lower of cap valuation divided by capitalization and next-round price times one minus discount. Check the denominator first when a ratio appears surprising.

Read the value against its evidence

For this safe conversion population, changes in population size can move the total while the per-security economics remain stable. Examine both scale and rate.

Hold SAFE investment fixed and substitute a documented alternative for SAFE discount; save both outputs and explain the changed rows.

When SAFE investment and SAFE discount come from different systems, reconcile their cutoff before presenting safe conversion to management.

When discussing safe conversion, a concentrated security base can make a modest SAFE discount variance material to safe conversion. Inspect distribution as well as the total.

Evidence still required

A manager reading safe conversion should remember that keep this exclusion with any copied output: Securities law, tax treatment, legal rights, preferences, vesting, and negotiated financing terms are not determined.

Against the defined safe conversion base, retain the output rows as well as the headline; intermediate values make later review faster.

Notes for the metric owner

Can the output replace accounting records?

In a reconciled safe conversion case, no. The source system and approved records remain authoritative for the business.

Can probability-weighted and committed values be compared?

A review of safe conversion shows why yes, when their different status is explicit and they are not summed as equivalent facts.

Who approves the metric definition?

With the safe conversion cutoff fixed, the accountable founding team should approve population, cutoff, and exclusions.

Can a forecast use the same formula?

Within the safe conversion analysis, yes, but it must be labeled forecast and supported by assumption evidence.

Can the sample figures be reported?

The working file for safe conversion indicates that no. They are test data unless independently replaced with current evidence.