Performance Max Lead Floor Calculator

Check whether your Performance Max budget is on pace by comparing spend and target CPA. Provide monthly spend and your target cost per lead to calculate the minimum lead volume required, highlight any gap versus actual leads, and optionally translate the target into projected revenue using your conversion rate and average customer value.

Budget allocated to Performance Max for the month.
Blended CPA you need to maintain profitability.
Defaults to 0 if blank. Add actual leads to surface any gap.
Defaults to 0%. Supply your lead-to-customer conversion rate to estimate required revenue.
Defaults to $0. Combine with conversion rate to translate leads into revenue targets.

Validate CPA targets with your finance team and ensure offline conversions are synced before acting on the results.

Examples

  • $45,000 spend, $120 CPL target, 350 leads, 4.5% conversion, $1,800 revenue ⇒ Minimum leads required: 375.00 • Current lead gap: 25.00 • Effective spend per required lead: $120.00 USD • Projected revenue at goal: $30,375.00 USD • Revenue per ad dollar: $0.68 USD
  • $28,000 spend, $95 CPL target, current leads blank ⇒ Minimum leads required: 294.74 • Current lead gap: 294.74 • Effective spend per required lead: $95.00 USD

FAQ

How often should I update the target cost per lead?

Refresh the target when margin, close rate, or downstream pricing changes so the lead floor reflects your current unit economics.

Does the calculator account for smart bidding learning periods?

No. If Performance Max is still in learning, pad the lead gap with an additional buffer to account for slower ramp-up.

What if I track multiple conversion actions?

Aggregate the actions into a single blended cost per lead or run the calculator separately for each high-value conversion to set tiered targets.

Additional Information

  • Use blended CPA that includes media and technology fees so the required lead floor aligns with finance targets.
  • Comparing required leads with actuals early in the month helps you adjust bidding strategies before budget burns.
  • Adding conversion rate and revenue inputs shows whether the CPA goal still clears your ROAS threshold.

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