Law firm ROI calculator

Estimates only. Actual ROI depends on accurate spend tracking, lead attribution, and case value data specific to your firm. This tool calculates the ratios from the numbers you enter, it doesn't independently verify your data. See our full disclaimer.

Marketing ROI calculator

Channel or campaign name

Total marketing spend for this period ($)

Qualified leads generated

Cases signed from this channel

Average revenue per signed case ($)

Your marketing ROI results

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What actually counts as good ROI for law firm marketing?

Cost per acquired client only means something in context of case value. A healthy benchmark used across the legal marketing industry is spending 10 to 20% of average case revenue to acquire each client, though this varies by practice area since case values differ so widely. A $2,700 cost to acquire a personal injury case worth $30,000 or more is a strong return, while the same acquisition cost on a $1,500 matter would erase most of the margin.

Cost per lead and cost per signed case measure different things and shouldn't be confused. Cost per lead is total spend divided by qualified leads generated, a measure of top-of-funnel efficiency. Cost per signed case is total spend divided by actual retainers signed, the number that connects marketing spend directly to revenue. A channel with a higher cost per lead can still outperform a cheaper one if its lead-to-signed-case conversion rate is meaningfully higher. Once you've calculated your numbers here, our legal fee comparison tool and retainer calculator can help confirm the case revenue figures feeding into this calculation are accurate.

Why does lead-to-signed-case conversion rate matter more than raw lead volume?

Because raw leads with no realistic conversion path waste both media spend and staff time chasing unqualified inquiries. A channel producing 100 cheap leads that convert at 5% can cost more per signed case, once intake labor is included, than a channel producing 30 pricier leads that convert at 25%. Chasing the lowest cost per lead in isolation is one of the most common law firm marketing mistakes, since it ignores where the funnel actually leaks.

Should intake labor and overhead be included in the ROI calculation?

Ideally, yes, for the most accurate picture. A more complete formula divides total marketing spend plus intake costs, including staff time, CRM software, and administrative overhead, by the number of signed cases. A channel that looks inexpensive on ad spend alone can look considerably more expensive once the labor cost of chasing unqualified leads is factored in.

Do different practice areas have meaningfully different acquisition cost benchmarks?

Yes, substantially. Practice areas with lower average case values, like basic estate planning or business formation, typically see lower per-lead and per-case acquisition costs, often in the range of $15 to $75 per lead, while personal injury, mass tort, and serious criminal defense see some of the highest acquisition costs in the industry due to both higher case value and intense competitive bidding among firms. Comparing your acquisition cost against a benchmark from a different practice area isn't a meaningful comparison.

Frequently asked questions about law firm marketing ROI

Industry benchmarks suggest an average inquiry-to-client conversion rate around 14%, though top-performing firms with fast response times and disciplined intake processes report rates closer to 40 to 50%. Response speed is one of the most cited factors separating average firms from top performers on this metric.

Most law firm marketing budgets run 2 to 10% of gross revenue, though personal injury firms in competitive markets often spend 10 to 20% or more, while referral-driven practices with lower acquisition needs operate closer to 2 to 5%. Budgeting from your known cost per signed case and a target case count is generally a stronger method than picking a percentage in isolation.

Concentration in a smaller number of well-funded channels generally outperforms spreading a budget thin across many channels at token levels. Legal marketing research has found the large majority of results often come from a small share of the channels and tactics actually tried, which argues for funding fewer channels effectively rather than diversifying broadly with limited budget per channel.

Organic search and referral leads typically carry no direct per-lead media cost once the underlying investment, like SEO content or reputation, is established, and both channels often convert at meaningfully higher rates than cold paid traffic since the prospective client arrives with more existing trust. Paid channels remain valuable for volume and speed but typically show a higher cost per signed case than earned or referral channels.

Monthly review is common practice among firms with disciplined marketing tracking, since it's frequent enough to catch a channel underperforming before significant budget is wasted, while still allowing enough data to accumulate for the numbers to be meaningful. A large share of firms currently track no consistent lead or ROI data at all, which is itself one of the most common and costly marketing gaps.