ROI calculator template

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Build an ROI calculator as a standalone lead-generation tool for Ledger & Loop, a marketing operations consultancy — this is a utility-led, interactive tool meant to be embedded or linked from ad campaigns, so the calculator itself needs to be front and center on load, not buried below a marketing pitch. Skip a traditional photo hero: open directly into the calculator interface on a clean, confident ground, with a short headline above the inputs reading 'What's your marketing actually returning?' and a one-line subhead: 'Enter your numbers, see your ROI in seconds — no email required to calculate.' Pair Söhne (or a similar geometric sans) for headlines and result figures with Inter for input labels and body copy — numbers should render in tabular figures so the result doesn't jitter as digits change. Ground the interface in cool off-white (#F5F6F8), deep navy for text and static UI (#1C2333), and a single electric teal accent (#1FA6A0) used only on the calculate button, the result figure, and the result-breakdown chart. Build the calculator with three plain-language inputs (Monthly marketing spend, Monthly revenue from marketing, Average customer lifetime value) as large, clearly-labeled number fields with real placeholder formatting (e.g., '$', comma separators), and a prominent 'Calculate my ROI' button. On calculation, reveal a results panel showing the ROI percentage as a large teal figure, a one-sentence plain-language interpretation ('For every $1 you spend, you're getting $X.XX back'), and a simple horizontal bar comparing spend vs. return. Below the calculator, add a short section offering a free consultation with a real CTA, positioned as a next step, not a gate. The signature moment: the ROI result figure counts up from zero to its final value over 600ms ease-out the moment it appears, and the comparison bar draws in from left to right in sync — giving the calculation a felt sense of working, not just an instant static swap, which is what makes a marketing tool feel like a real tool rather than a form that spits out text. Animate the results panel with a 300ms fade-up on reveal alongside the count-up and bar draw-in described above; collapse the count-up to an instant final value and the bar to its final width under prefers-reduced-motion. No placeholder numbers, consultancy details, or 'Company Name' — every figure, label, and CTA should read as real.

FAQs about this ROI calculator template

What is the formula to calculate ROI?

ROI = (gain from the investment minus its cost) divided by the cost, times 100. If you spend $1,000 and get $1,500 back, your ROI is 50%. This template does that math for your visitors as they type.

What are common mistakes in ROI calculations?

Leaving out hidden costs like time or fees, mixing up revenue and profit, and ignoring how long the return takes. You can ask B12 to add fields for any of these so your calculator gives a more honest number.

Can I put an ROI calculator on my website?

Yes. Start from this template, tell B12 what your calculator should measure, and it builds a working calculator you can publish on its own or add to an existing site.

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