FTP Calculator
20-min test power to FTP, W/kg, 7 Coggan power zones, HR zones, and visual training methodology guides.
↗Power-to-Weight Ratio
W/kg with benchmark table — see where you sit from recreational to World Tour pro.
↗TSS Calculator
Duration + normalised power + FTP to Training Stress Score with recovery and weekly load guides.
↗Gear Ratio Calculator
Chainring and sprocket combo to speed at any cadence, with development and gear inches.
↗Triathlon Race Predictor
Swim, bike, and run paces plus transitions to total finish time — Sprint through Ironman.
↗Pacing Strategy Builder
Target finish time to per-km splits with even, negative, positive, and progressive strategies.
↗Run Pace Converter
Instant conversion between min/km, min/mile, km/h, and mph with race time predictions.
↗Fuelling Calculator
Carbs per hour, fluid targets, and a practical fuelling schedule based on duration and intensity.
↗Sweat Rate Calculator
Pre/post weight to hourly sweat rate, dehydration status, and personalised hydration plan.
↗VO₂ Max Estimator
Estimate VO₂ max from a recent race time using the Jack Daniels VDOT method, with equivalent predictions.
↗Cervia Ironman Wetsuit Predictor
Five prediction methods triangulate Adriatic water temperature for IRONMAN Italy — wetsuit or non-wetsuit swim?
↗CdA Calculator
Calculate aerodynamic drag coefficient from GPX ride data with power — segment detection, wind estimation, and sensitivity analysis.
↗The Headwind Paradox
Interactive animation showing why an out-and-back ride in wind is always slower — with real physics, drag forces, and time breakdowns.
↗ClaudeCoach
AI-powered Ironman coaching system — automated daily prescription, load monitoring, compliance analysis, and session debriefs for IM Cervia 2026.
↗House Purchase Scenarios
Compare up to four house purchase scenarios side-by-side — see how price, deposit, rate, and buyer type change the numbers.
↗Stamp Duty Calculator
Calculate UK stamp duty land tax for property purchases.
↗Student Loan: Pay Off or Invest?
Should you clear your student loan or invest in an ISA? See the maths with interactive charts.
↗Accept Now, or Wait?
Mortgage cost reality check for sellers — see how rate changes affect buyer affordability.
↗UK Property Shocks
When do economic shocks crash the housing market — and when don't they? Historical analysis and 2026 outlook.
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