Calculators
Direct measurement of an input → output relationship. Compound interest, dog age, pricing/margin, BMI/calorie.
STUDIO · ABOUT
About Planimora Studio
A boutique studio that builds custom calculators for business websites.
We design and ship measurement tools — not generic forms. Every calculator answers a specific question for a specific audience, with sourced methodology and a result that reads like a tool, not a quiz.
Async-first. Written-context. No calls.
What we make
Four shapes of one idea — each is a calculator that answers a measurable question. Most differ in input scope and result framing.
Quote tools
Visitor inputs project parameters; the tool returns a price range, scope, or rough timeline. Surfaces buyer intent before the first reply.
Configurators
Step-by-step assembly from options. Vacation packages, retirement-account selection, route comparison.
Decision tools
Branching logic with a verdict. "Which X is right for you?" Lead-qualifying without the sales call.
How we work
Four working principles. Same on every project, regardless of vertical.
Async-first
We work in writing. Send a brief, get a response within a few business days. No discovery calls, no meeting culture.
Written context wins
Visual references, sketches, competitor examples — anything that shows the shape of what you want — beat any meeting we could schedule.
Sourced methodology
Every calculation cites where the formula came from. AAHA, BLS CPI-U, peer-reviewed studies. No guessed numbers, no marketing math.
Faceless brand
We don't put a face on the work. The tool is the artifact. Clients buy a measurement instrument, not a personal brand.
Examples of sources we cite in shipped calc work: AAHA Canine Life Stage Guidelines (2019) · BLS Consumer Price Index (CPI-U) — both peer-reviewed or government-authoritative.
Examples
What we've shipped so far. Each is live, sourced, and built with the same patterns we'd apply to your project.
Dog Age CalculatorOpen →
Convert dog years to human-equivalent years using AAHA 2019 life stages, the Wang/UCSD epigenetic clock, and breed-size-tiered formulas.
Compound Interest CalculatorOpen →
Project the future value of investments with periodic contributions, inflation adjustment, and historical-instrument scenarios.
Pricing range
Most projects fall between $4,000 and $15,000 depending on complexity, scope, and integration. We don't publish fixed tiers — every project is shaped to the brief. Send the brief; we reply with a practical scope and range.
Process
Four steps, written-only. Roughly four weeks from brief to ship for a typical scope.
01Brief
You send the page you want to improve plus a short description of the tool. Include references, sketches, competitor examples — anything visual.
02Estimate
We reply within a few business days with scope, range, and next steps. If the idea doesn't fit our shape, we say so plainly and point you elsewhere.
03Build
We ship in writing. You see drafts at meaningful checkpoints. Async-only — no standups, no review meetings.
04Ship
We hand off the working tool, embed instructions, and a one-page methodology note. Two review cycles included.
Have a brief?
Send us the page you want to improve and a short description of the tool. Include references, sketches, or competitor examples — anything visual helps. We reply within a few business days with scope, range, and next steps.
Send brief
Or write directly: hello@planimora.com