Appliance Total Cost of Ownership Calculator
ANA›Life Services Authority›National Calculator Authority›Appliance Total Cost of Ownership Calculator
.calc-container { max-width: 640px; margin: 2rem 0; padding: 1.5rem; background: #fff; border: 1px solid #ddd; border-radius: 8px; box-shadow: 0 1px 3px rgba(0,0,0,0.06); font-family: system-ui, -apple-system, sans-serif; } .calc-container h3 { font-family: Georgia, serif; font-size: 1.15rem; color: #1a1a1a; margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--ac, #3d5a80); } .calc-row { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.75rem; flex-wrap: wrap; } .calc-row label { min-width: 160px; font-size: 0.9rem; color: #333; font-weight: 500; } .calc-row input[type="number"], .calc-row select { flex: 1; min-width: 120px; max-width: 200px; padding: 0.5rem 0.6rem; border: 1px solid #ccc; border-radius: 4px; font-size: 0.9rem; font-family: system-ui, sans-serif; color: #1a1a1a; background: #fafaf8; } .calc-row input:focus, .calc-row select:focus { outline: none; border-color: var(--ac, #3d5a80); box-shadow: 0 0 0 2px rgba(26,74,138,0.12); } .calc-row .unit { font-size: 0.82rem; color: #888; min-width: 30px; } .calc-btn { display: inline-block; margin-top: 0.5rem; padding: 0.55rem 1.5rem; background: var(--ac, #3d5a80); color: #fff; border: none; border-radius: 4px; font-size: 0.9rem; font-weight: 600; cursor: pointer; font-family: system-ui, sans-serif; } .calc-btn:hover { opacity: 0.9; } .calc-result { margin-top: 1.25rem; padding: 1rem 1.25rem; background: #f0f6fc; border-left: 3px solid var(--ac, #3d5a80); border-radius: 0 6px 6px 0; display: none; } .calc-result.visible { display: block; } .calc-result-label { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.06em; color: #666; margin-bottom: 0.25rem; } .calc-result-value { font-size: 1.6rem; font-weight: 700; color: var(--ac, #3d5a80); } .calc-result-detail { font-size: 0.85rem; color: #555; margin-top: 0.5rem; line-height: 1.5; } .calc-note { margin-top: 1rem; font-size: 0.8rem; color: #888; font-style: italic; } .calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; margin-top: 0.75rem; } .calc-grid-item { padding: 0.6rem 0.8rem; background: #f8f9fa; border-radius: 4px; border: 1px solid #eee; } .calc-grid-item .label { font-size: 0.75rem; color: #888; text-transform: uppercase; letter-spacing: 0.04em; } .calc-grid-item .value { font-size: 1.1rem; font-weight: 600; color: #1a1a1a; } @media (max-width: 720px) { .calc-row { flex-direction: column; align-items: flex-start; gap: 0.3rem; } .calc-row label { min-width: auto; } .calc-row input[type="number"], .calc-row select { max-width: 100%; width: 100%; } .calc-grid { grid-template-columns: 1fr; } } .calc-chart { margin: 1rem 0; text-align: center; } .calc-chart svg { max-width: 100%; height: auto; } .calc-chart-legend { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem 1.2rem; margin-top: 0.6rem; font-size: 0.8rem; color: #555; } .calc-chart-legend span { display: inline-flex; align-items: center; gap: 0.3rem; } .calc-chart-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; font-style: normal; } .calc-related { max-width: 640px; margin: 2rem 0 1rem; padding: 1.25rem 1.5rem; background: #f8f9fa; border: 1px solid #e8e8e8; border-radius: 8px; } .calc-related h3 { font-family: Georgia, serif; font-size: 1rem; color: #1a1a1a; margin: 0 0 0.75rem; padding-bottom: 0.4rem; border-bottom: 2px solid var(--ac, #3d5a80); } .calc-related-list { list-style: none; padding: 0; margin: 0 0 0.75rem; display: grid; grid-template-columns: 1fr 1fr; gap: 0.4rem 1.5rem; } .calc-related-list li a { font-size: 0.88rem; color: var(--ac, #3d5a80); text-decoration: none; } .calc-related-list li a:hover { text-decoration: underline; } .calc-browse-all { margin: 0.5rem 0 0; font-size: 0.9rem; font-weight: 600; } .calc-browse-all a { color: var(--ac, #3d5a80); text-decoration: none; } .calc-browse-all a:hover { text-decoration: underline; } @media (max-width: 720px) { .calc-related-list { grid-template-columns: 1fr; } }
Appliance Total Cost of Ownership Calculator
Calculate the true total cost of owning an appliance over its lifetime, including purchase price, installation, energy consumption, maintenance, repairs, and disposal costs.
Purchase Price ($)
Installation Cost ($)
Expected Lifespan (years)
Annual Energy Consumption (kWh/year)
Electricity Rate ($/kWh)
Annual Maintenance Cost ($)
Average Repair Cost Per Incident ($)
Repair Frequency (incidents/year)
Disposal / Recycling Cost ($)
Salvage / Resale Value at End of Life ($)
Discount Rate / Inflation Rate (% per year)
Calculate
function appCalc() { var resultDiv = document.getElementById("app-result");
var purchasePrice = parseFloat(document.getElementById("app-purchase-price").value); var installationCost = parseFloat(document.getElementById("app-installation-cost").value); var lifespan = parseFloat(document.getElementById("app-lifespan").value); var energyConsumption = parseFloat(document.getElementById("app-energy-consumption").value); var electricityRate = parseFloat(document.getElementById("app-electricity-rate").value); var annualMaintenance = parseFloat(document.getElementById("app-annual-maintenance").value); var repairCost = parseFloat(document.getElementById("app-repair-cost").value); var repairFrequency = parseFloat(document.getElementById("app-repair-frequency").value); var disposalCost = parseFloat(document.getElementById("app-disposal-cost").value); var salvageValue = parseFloat(document.getElementById("app-salvage-value").value); var discountRate = parseFloat(document.getElementById("app-discount-rate").value);
// Validation var errors = []; if (isNaN(purchasePrice) || purchasePrice 0) { resultDiv.innerHTML = "Please fix the following errors:" + errors.map(function(e){ return ""; }).join("") + ""; return; }
var r = discountRate / 100;
// ── Upfront costs (paid at time 0, no discounting needed) ────────────────── var upfrontCost = purchasePrice + installationCost;
// ── Annual operating cost (nominal, per year) ────────────────────────────── var annualEnergyCost = energyConsumption * electricityRate; var annualRepairCost = repairCost * repairFrequency; var annualOperating = annualEnergyCost + annualMaintenance + annualRepairCost;
// ── Present Value of annual operating costs using annuity formula ────────── // If r == 0: PV = annualOperating * lifespan // If r > 0: PV = annualOperating * [1 - (1+r)^(-n)] / r (ordinary annuity) var pvAnnuity; if (r === 0) { pvAnnuity = annualOperating * lifespan; } else { pvAnnuity = annualOperating * (1 - Math.pow(1 + r, -lifespan)) / r; }
// ── Present Value of disposal cost and salvage value (at end of life) ────── var pvDisposal = disposalCost / Math.pow(1 + r, lifespan); var pvSalvage = salvageValue / Math.pow(1 + r, lifespan);
// ── Total Cost of Ownership (NPV basis) ──────────────────────────────────── var tco = upfrontCost + pvAnnuity + pvDisposal - pvSalvage;
// ── Annual equivalent cost (annualised TCO) ──────────────────────────────── // AEC = TCO * r / [1 - (1+r)^(-n)] if r > 0 // AEC = TCO / n if r == 0 var aec; if (r === 0) { aec = tco / lifespan; } else { aec = tco * r / (1 - Math.pow(1 + r, -lifespan)); }
// ── Cost per year (simple, undiscounted) ─────────────────────────────────── var simpleTotalCost = upfrontCost + (annualOperating * lifespan) + disposalCost - salvageValue; var simpleCostPerYear = simpleTotalCost / lifespan;
// ── Breakdown percentages (of simple total) ──────────────────────────────── var totalEnergy = annualEnergyCost * lifespan; var totalMaintenance = annualMaintenance * lifespan; var totalRepairs = annualRepairCost * lifespan;
function fmt(n) { return n.toLocaleString("en-US", {minimumFractionDigits:2, maximumFractionDigits:2}); } function pct(n, total) { return total > 0 ? (n / total * 100).toFixed(1) : "0.0"; }
resultDiv.innerHTML = "### Results " + "" + "ComponentAmount% of Simple Total" + "Purchase Price$" + fmt(purchasePrice) + "" + pct(purchasePrice, simpleTotalCost) + "%" + "Installation Cost$" + fmt(installationCost) + "" + pct(installationCost, simpleTotalCost) + "%" + "Total Energy Cost (" + lifespan + " yrs)$" + fmt(totalEnergy) + "" + pct(totalEnergy, simpleTotalCost) + "%" + "Total Maintenance (" + lifespan + " yrs)$" + fmt(totalMaintenance) + "" + pct(totalMaintenance, simpleTotalCost) + "%" + "Total Repairs (" + lifespan + " yrs)$" + fmt(totalRepairs) + "" + pct(totalRepairs, simpleTotalCost) + "%" + "Disposal Cost$" + fmt(disposalCost) + "" + pct(disposalCost, simpleTotalCost) + "%" + "Salvage Value (deducted)-$" + fmt(salvageValue) + "-" + pct(salvageValue, simpleTotalCost) + "%" + "Simple Total Cost$" + fmt(simpleTotalCost) + "100%" + "Simple Cost Per Year$" + fmt(simpleCostPerYear) + "/yr—" + "NPV Total Cost of Ownership$" + fmt(tco) + "—" + "Annual Equivalent Cost (AEC)$" + fmt(aec) + "/yr—" + "" + "Discount rate applied: " + discountRate + "% per year | Lifespan: " + lifespan + " years
"; }
#### Formulas Used
Annual Operating Cost (nominal): Annual Operating = (kWh/yr × $/kWh) + Annual Maintenance + (Repair Cost × Repairs/yr)
Present Value of Annual Operating Costs (ordinary annuity): PVoperating = Annual Operating × [1 − (1 + r)−n] / r (r > 0) PVoperating = Annual Operating × n (r = 0)
Present Value of End-of-Life Cash Flows: PVdisposal = Disposal Cost / (1 + r)n PVsalvage = Salvage Value / (1 + r)n
Net Present Value — Total Cost of Ownership (TCO): TCO = (Purchase Price + Installation) + PVoperating + PVdisposal − PVsalvage
Annual Equivalent Cost (AEC): AEC = TCO × r / [1 − (1 + r)−n] (r > 0) AEC = TCO / n (r = 0)
Simple (undiscounted) Total Cost: Simple Total = Purchase + Installation + (Annual Operating × n) + Disposal − Salvage
Where: r = annual discount rate (decimal), n = lifespan in years.
#### Assumptions & References
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