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Home› Free Tools› Speed-to-Revenue Calculator
Free · No sign-up · Based on public benchmarks

Know your speed? Now see what it's worth.

Translate milliseconds into monthly revenue. Plug in your traffic, conversion rate and Core Web Vitals — we'll show you the ROI of every 100ms you shave off.

+1s slower = −7% conv 100ms steps 3 scenarios
Revenue simulator Running estimate: —

What's your industry?

We pre-load sector benchmarks. You can still override every value in the next step.

Crunching the numbers…

Talking to MCP Codeformers · benchmarking against your industry

Processing your inputs —
Connecting to MCP Codeformers —
Comparing against industry benchmarks —
Validating results —
Step 1 of 4 · Industry
Methodology

Where the numbers come from.

We don't invent elasticity coefficients. Every scenario rate we use is a published, peer-reviewed benchmark — sources linked below.

◢ Deloitte × Google

Milliseconds make millions

4,500 retail and travel sites tracked for 4 weeks. A 0.1s improvement in mobile LCP drove +8.4% in retail conversions on average — we use the median (+0.35%/100ms) as the "expected" band.

Source: Deloitte Digital, 2020
◢ Chrome UX Report

Public CrUX field data

Real-user LCP distributions from millions of Chrome installs. We pair your inputs with CrUX industry medians so you can sanity-check yourself against your sector.

Source: Google CrUX dataset, rolling 28 days
◢ WPO Stats

Industry case-study archive

400+ case studies published by retailers, SaaS and publishers. Top-quartile outcomes cluster around +0.5% per 100ms — our "aggressive" scenario. Amazon's original 100ms ÷ 1% finding sits here too.

Source: wpostats.com, curated
How the math works

Four inputs, three scenarios, one formula.

◢ Step 01

Baseline monthly revenue

sessions × CR × AOV — your current monthly take. This is the number we lift against.

◢ Step 02

Delta steps

(LCP_current − LCP_target) / 100 — how many 100ms "steps" you'd gain. We cap improvements at +3.0% CR to stay realistic.

◢ Step 03

Apply the rate

revenue × (1 + steps × rate) — three rates, three scenarios. Year-over-year, not compounding month-on-month.

FAQ

Honest questions, honest answers.

A prediction, based on published industry elasticity. Your actual lift depends on product-market fit, funnel leaks, checkout UX, and a dozen other things that have nothing to do with speed. Use the "conservative" number for planning, the "expected" number to pitch internally, and the "aggressive" number to dream.
Lighthouse is a 0–100 composite — useful for triage, useless for modelling. LCP is a wall-clock measurement of real user experience, and it's the Core Web Vital most tightly correlated with conversion lift in every dataset we've seen.
They matter for SEO and UX, less for direct revenue math. A NITRO audit addresses all three, but modelling LCP alone gives you a cleaner signal and avoids triple-counting the same fix.
It can — if speed was genuinely a bottleneck. If you were already at 1.8s LCP, don't expect miracles. The calculator caps lift at +3.0% CR for exactly this reason. The place to start is always: can you even improve your speed meaningfully? Run the Speed Test first.
No — this is a blended single-number estimate. For a proper split by device and region, run the 30-point audit that ships with a NITRO engagement.
PDF export is rolling out shortly. For now, your inputs persist to local storage so you can come back to the page and tweak — or screenshot the results card.
More free tools

The rest of the free-tool kit.

Core Web Vitals checker

Scan any URL for LCP, INP and CLS. The logical step before this calculator.

→

Project cost estimator

Ballpark a web or mobile build in 90 seconds. Scope, stack, timeline.

→

Technical debt calculator

Quantify the hidden tax your legacy stack charges every sprint.

→

Tech stack advisor

Get a stack recommendation for your next build — with reasoning.

→
Ready to unlock this revenue?

You modeled the upside. NITRO ships it in 21 days.

Fixed price, fixed scope. Mobile Lighthouse 90+ and Core Web Vitals "Good" — or your money back.

See the NITRO service → Book a 15-min call
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