Localization

Region & formats

Choose how NumLuma formats money, measurements, temperature, fuel economy, dates and time on this device.

Currency changes formatting only; NumLuma does not perform live FX conversion.
Try: “450k house 20% down 6.5”, “I owe 8k at 19% and pay 300”, “save 15k in 18 months”↑↓ navigate · Enter open
Start typing or browse popular tools.
V8 / Widget Studio

Put the calculation
where the question is.

Choose a calculator, tune the presentation, preview it live and copy a lightweight iframe. The calculation still runs in the visitor’s browser.

Live previewLight · Standard · 620px
Popular embeds

Start from a proven tool.

Use any of the 100 calculators in the builder. These six are common starting points.

01Money

Mortgage Payment

Estimate mortgage principal and interest.

02Everyday

Percentage

Find X% of any number.

03Business

Profit Margin

Calculate profit and margin percentage.

04Work

Hourly to Salary

Convert hourly pay to annual salary.

05Money

Compound Interest

Project compound growth.

06Home

Room Area

Find room floor area from length and width.

NL / EMBED STANDARD

Widgets use the same tested calculation engine as NumLuma, keep inputs local to the browser and preserve a “Powered by NumLuma” attribution link.