Resolution Scaler
Scale a resolution up or down by percentage.
Formula and method
This calculator computes Scaled width, Scaled height directly in your browser without sending data to an external server.
Mathematical formula
- Scaled width:
width × scale ÷ 100 - Scaled height:
height × scale ÷ 100
Variables and parameters
- Original width (width): default value 1920 px.
- Original height (height): default value 1080 px.
- Scale (scale): default value 150 %.
Some formulas are undefined for certain input combinations (such as division by zero or logarithms of non-positive numbers). In those cases the live tool displays an alert instead of NaN.
Embed this tool
Paste this snippet into your own site or blog post to embed a live, working copy of this tool. It links back to the full page on SpecWhale.
Frequently asked questions
What equation and variables does Resolution Scaler use?
Resolution Scaler evaluates outputs such as <strong>Scaled width, Scaled height</strong> based on inputs including Original width, Original height, Scale. Check the Mathematical Method section for the explicit formula.
What happens if I enter invalid or zero values into Resolution Scaler?
If an input combination is mathematically undefined (such as division by zero or negative square roots), SpecWhale alerts you gracefully rather than returning invalid NaN outputs.
Are my calculations in Resolution Scaler saved or private?
All calculations are 100% private and run locally in your Web browser. Your numbers are never uploaded to any server, but can be saved locally to your device or exported as CSV/JSON.
Is Resolution Scaler free to use?
Yes. Resolution Scaler is completely free, has no usage limit, and does not require an account, email, or API key.
Does Resolution Scaler store or upload my data?
No. Resolution Scaler calculates everything locally in your browser. Nothing you type is sent to a server or stored by SpecWhale.
How accurate is Resolution Scaler?
Resolution Scaler uses a standard formula (see the Method section above for the exact expression). For high-stakes financial, medical, or legal decisions, confirm the result with a professional or an authoritative source before relying on it.
Can I embed Resolution Scaler on my own website?
Yes. Use the "Embed this tool" snippet on this page to add a free, working copy of Resolution Scaler to your own blog post or page.