All tools
Nineteen professional-grade calculators, organised by discipline so teams can find the right tool faster. All tools are free to use.
Use search, category filters, or the quick links above. Each tool page includes live assumptions in the calculator itself so teams can move fast without hunting through documentation.
Use the tools free, then email yourself the useful files
Run the calculators openly, send the high-value CSV or PDF outputs to your inbox, then discuss your project with BuckleBridge if it needs a harder review.
Economics & Finance
LCOH Calculator FREE
Levelised cost of hydrogen - standard NPV model with two-scenario comparison
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Email the LCOH export EMAIL GATED
Run the free calculator, then email the CSV or PDF output to yourself for internal review and stakeholder circulation.
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CAPEX Tool FREE
Capital expenditure estimation for electrolyser, storage, BoP and compression scope
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Email the CAPEX export EMAIL GATED
Use the free CAPEX tool, then email the CSV or PDF output to yourself for supplier, investor, or internal budget discussions.
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LCOS Calculator FREE
Levelised cost of storage - NPV costs discounted against round-trip energy output
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Break-even Price FREE
Minimum H₂ offtake price for NPV breakeven and target IRR - NPV vs price curve
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Stack Replacement Economics FREE
Model replacement intervals, NPV cost and annual provision over project life
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Carbon Intensity Calculator FREE
Production CI vs grey, blue and green benchmarks - EU taxonomy flag at 3.38 kgCO₂/kgH₂
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Process Engineering ALL FREE
Electrolyser Sizing
Size electrolyser plant from H₂ demand - installed capacity, stack count, energy and water
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Compressor Power
Multi-stage isentropic compression power, outlet temperature and specific energy (kWh/kg)
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Heat Exchanger Sizing
LMTD method - heat duty, UA product and indicative area for H₂ cooling or heating duty
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Pipeline Pressure Drop
Darcy-Weisbach with Colebrook-White for H₂ pipelines - pressure profile, velocity and Re
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Storage Sizing
Compressed hydrogen storage volume, charge/discharge time and indicative vessel CAPEX
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Flow & Energy Conversion
Hydrogen flow unit conversions between Nm³/h, kg/h, MWh and GJ - live bidirectional
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Safety & Compliance ALL FREE
Flammability Zone Estimator
Indicative H₂ release rate, LFL/UFL cloud dimensions and 2D dispersion visualisation for leak scenarios
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Ventilation Rate Calculator
Required air changes per hour to control steady-state H₂ concentration - forward and reverse modes
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Purge Volume Calculator
Purge cycles, sweep volume and concentration decay curve for vessel or pipeline purging operations
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