Gadget Replacement CalculatorMoney × Carbon Dual-Axis Analysis

Device Type

Current Device

Purchase Price ($)

Age (months)

Current Resale Value ($)

Avg. Monthly Repair/Maintenance ($)

Satisfaction Score (1=Terrible, 10=Perfect)

New Device

New Device Price ($)

Expected Lifespan (years)

Carbon Estimate (adjustable)

Reference: Phone ~70, Laptop ~300, Tablet ~90, Desktop ~700. Source: IEA/LCA studies (estimates only, not certified data)

New Device Manufacturing CO₂ (kg CO₂e)

Current Device Efficiency Loss (%)

15%

Current Device Power Draw (W)

Daily Usage Hours

The Ultimate Slack-Off Tool!

Stealth-watch videos & listen to novels

No card needed. Try it right now.

Love it? One coffee = lifetime access.

Get it on Microsoft Store

Windows 11 / 10 only

💡

You might also need

→Extended Warranty Calculator →Payment Method Comparator →Delivery vs Cooking Cost Calculator

When is the right time to upgrade your gadget?

Traditional upgrade decisions only look at whether the new device is worth it financially, ignoring environmental cost. This tool calculates both financial break-even and carbon payback time for a more complete picture.

How is the financial analysis calculated?

We compare the monthly depreciation loss + repair costs of your current device against the new device price amortized over its expected lifespan to find the financial break-even point.

Why does carbon matter?

Manufacturing a new device consumes significant carbon. If your current device's degraded efficiency causes extra power consumption, upgrading can pay back that carbon over time. All estimates are transparently sourced.