We design calculators and interactive tools that buyers actually use. Inputs stay simple, outputs are clear, and every result routes to a next step on your site.
Tool types we build
Cost and ROI
- Fuel choice impact and payback
- Port fee range by vessel class
- Deviation vs bunker trade-off
Operations and planning
- Laytime and demurrage checks
- Drydock timeline fit by yard
- Towage and pilotage totalizer
Compliance and risk
- EU ETS exposure estimate by route
- Shore power readiness checks
- Sanctions screening helpers
Every tool includes a route to RFQ or a calendar when a user needs help.
From inputs to results
| Tool | Used by | Inputs | Output |
|---|---|---|---|
| EU ETS exposure | Owners and operators | Voyage legs, fuel, tonnage | Allowance estimate with notes and next checks |
| Port fee range | Operators and agents | Port, vessel class, scope | Range by line item with a link to sources |
| Deviation vs bunker | Chartering and ops | Fuel price, distance, time | Cost comparison and break even point |
| Laytime checker | Ops and legal | SOF fields, rates, exceptions | Time used and flags to review |
| Drydock planner | Tech managers | Yard, work scope, window | Fit by slot with prep checklist |
Assumptions are explained on the result. Users can export CSV or print a clean summary.
Design standards we follow
Clarity
- Plain inputs with examples
- Units shown next to fields
- Errors written in simple language
Speed
- Lightweight templates
- Client side math when safe
- Caching for repeat use
Action
- RFQ or calendar button on result
- CSV export and print view
- GA4 events mapped to CRM
Example wireframes
Deviation vs bunker
Inputs:
Fuel: 680 USD/mt
Extra distance: 420 nm
Speed: 12 kn
SFC: 170 g/kWh
Time cost: 1,200 USD/day
Result:
Option A cost: 12,400 USD
Option B cost: 10,950 USD
Break even at: 655 USD/mt fuel
Next step: Request a quote
Port fee range
Inputs:
Port: Las Palmas
Vessel: Handymax
Scope: Arrival + pilotage + berth + tow
Result:
Est. total: 18,000 to 22,500 USD
Lines: pilotage, towage, berth, dues
Sources: link to tariff pages
Next step: Ask for a formal estimate
Numbers above are illustrative. Live tools show the math steps and link to sources when used.
Where your tools run
On your site
Embed on service and port pages so results route to your RFQ flow.
Inside the portal
Pair with news and explainers. Tools keep readers engaged and qualified.
API endpoints
Let other pages request a calculation and log the event to your CRM.
Build plan
| Week | Focus | Output |
|---|---|---|
| Week 1 | Pick the first tool and define inputs and outputs | Spec with formulas, assumptions, and validation |
| Week 2 | Build and style the calculator | Working tool on a staging page |
| Week 3 | Connect events and the RFQ route | GA4 events, CRM notes, export and print |
| Week 4 | Publish and review | Live tool with a short change list |
Exact timing depends on access and approvals. We can start on your current theme.
Request a Tools & Calculators plan
Tell us the decision your buyers are trying to make. We will outline a calculator that matches your services and routes to a next step.