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Specialty calculators

Choose a feasibility model for a capital project, commercial property, energy/infrastructure project or subscription business. Or use the complete Decision Feasibility study and our other math, engineering and planning tools.

Select a workspace below. The Feasibility filter groups the complete study and four financial models.

Scientific calculator

Expressions, trigonometry, memory and numerical functions.

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Graphing calculator

Function plots, sliders, tables and chart exports.

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Decision feasibility calculator

Use this decision feasibility calculator for feasibility studies, go/no-go analysis, decision matrices, cost-benefit analysis and opportunity scoring with explicit uncertainty.

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Capital budgeting and NPV calculator

Use this capital budgeting and NPV calculator for annual or dated cash flows, IRR, XIRR, MIRR, profitability index, payback, equivalent annual value and scenario comparison.

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Commercial real estate feasibility calculator

Use this commercial real estate feasibility calculator for acquisition cash flow, NOI, DSCR, cap rates, LTV/LTC, equity returns, exit value and downside stress tests.

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Renewable energy and infrastructure feasibility calculator

Use this renewable energy and infrastructure feasibility calculator for project cash flow, discounted lifecycle cost, LCOE, NPV, equity returns and production or cost stress scenarios.

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SaaS and business model feasibility calculator

Use this SaaS and business model feasibility calculator for subscription cohorts, MRR/ARR, churn, retention, CAC payback, bounded LTV, burn, cash runway and downside scenarios.

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GPT usage remaining calculator

Use this GPT usage remaining calculator to plan weekly and five-hour allowances from your own snapshots, consumption rates, reserve targets and reset times.

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Mechanical and material strength calculator

Use this mechanical and material strength calculator for bend allowance, beam deflection, section properties, axial stress, shaft torsion, torque, ratios and bearing rating life.

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Fluid and thermal industrial calculator

Use this fluid and thermal industrial calculator for cylinder force, pneumatic air consumption, pump power, pipe pressure loss, tank volume, thermal expansion and heating time.

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Industrial production capacity calculator

Use this industrial production capacity calculator for conveyor throughput, takt time, workstation capacity and machining removal rates and correctly labeled Cp/Cpk or Pp/Ppk process indices.

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Construction calculator

Use this construction calculator for feet, inches and fractions, right-triangle dimensions and equal stair-rise layouts.

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Financial calculator

Use this financial calculator to solve time-value-of-money unknowns and evaluate cash-flow NPV and IRR with explicit signs and payment timing.

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Statistics calculator

Use this statistics calculator to summarize data, fit linear regression models and calculate normal or binomial probabilities with visible assumptions.

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Algebra and matrix calculator

Use this algebra and matrix calculator to solve quadratic equations and linear systems, multiply matrices, and calculate inverses and determinants.

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Cutting layout optimizer

Use this cutting layout optimizer to plan linear stock cuts and rectangular sheet layouts with blade width, edge trim and rotation options.

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Psychrometric calculator

Use this psychrometric calculator to find humidity ratio, dew point, wet-bulb temperature and air enthalpy from measured conditions.

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Machinist calculator

Use this machinist calculator to convert supplied cutting speed to RPM and calculate milling or drilling feed rates and travel time.

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How the feasibility line fits together

Use a dedicated financial model for its cash-flow definitions, scenarios and period table. Review its assumptions, then optionally send its base unlevered cash flows into Decision Feasibility to assess evidence, mandatory requirements and your decision preferences. The handoff never grants a GO result or fills in legal, operational or market evidence.

Choose the tool for your task

These workspaces are separate from the 331 business worksheets in the calculator library. Their calculations, printouts and result downloads are free. They are not currently sections in paid comparison or project reports. Inputs stay in your browser tab; nothing is saved automatically.

Each workspace shows its supported methods, examples, input definitions and limits. We build original interfaces around established mathematics; no other calculator brand endorses BusCalc.