Depreciation Calculator

How to use Depreciation Calculator

1. Open Depreciation Calculator in your browser — it loads instantly and works offline once cached.
2. Enter your values in the input fields. Every field is labelled so you know exactly what to type.
3. The result updates automatically as you type — there is no "submit" round-trip to a server.
4. Adjust any input to compare scenarios and see how the outcome changes in real time.
5. Copy or note the result. Nothing you enter is stored or sent anywhere.

Why use Depreciation Calculator?

• 100% free with no limits, no sign-up and no watermarks.
• Private by design — your data are processed in your browser and never uploaded to a server.
• Fast and lightweight, with instant results even on a phone or a slow connection.
• Works everywhere — any modern browser on Windows, macOS, Linux, Android or iOS.
• Part of a full business suite, so related depreciation tasks are one click away.

What people use Depreciation Calculator for

• Spreading the cost of equipment across its useful life for accounts.
• Estimating the current book value of an asset.
• Comparing straight-line against reducing-balance methods.

Depreciation Calculator: limits and things worth knowing

• Straight-line spreads cost evenly: (cost − salvage value) ÷ useful life. £10,000 with £1,000 salvage over 5 years is £1,800 a year.
• Reducing balance charges more in early years, which better matches how assets like vehicles and computers actually lose value.
• Accounting depreciation and tax depreciation are different systems with different rules, and most jurisdictions specify the tax treatment. Do not assume the two match.
• Depreciation is a non-cash charge: it reduces reported profit without money leaving the business, which is why cash flow and profit diverge.

Is it private and secure?

Your privacy is built in. Depreciation Calculator runs completely on your device, so whatever you enter stays in your browser and is never transmitted, logged or stored on any server.

Network activity: none. Nothing is sent and nothing is fetched. This tool makes no network request at all once the page has loaded — which is why it keeps working if your connection drops.

You do not have to take that on trust — our privacy proof page publishes the Content-Security-Policy that enforces it, lists every third party it permits, and shows how to verify the whole claim yourself.

Learn more

Why Browser-Based Tools Are Safer for Your Files — Most online converters upload your files to a server. Client-side tools don't. Here's why that difference matters for privacy.