Free, forever – no sign-up, calculations stay in your browser. About me →
Updated June 2026

Everyday
tools, sorted.

Random numbers, distance, time and other handy everyday calculators. Free, instant, and private.

Independently owned6 calculatorsEvery formula shown

Jean Borg

Founder & developer · How I build these →

Utilities · example

Download time

File transfer

Time

1m 20s

1 GB at 100 Mbps

Open download time calculator ›

6

Utilities tools

100%

Free, no sign-up

0

Data stored

1 hr

To build a request

Transparent math

Simple tools,
done right.

No black boxes. Every tool shows the exact method or formula it used – so you can check it, trust it, and learn it.

Try the Random Number Generator ›
the method
# Download time
time = file size / speed

# Distance
d = √((x₂−x₁)² + (y₂−y₁)²)

Questions

Utilities questions.

Are these utilities calculators really free?

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Yes – every one is completely free, with no sign-up, no account, and no paywalled results.

How accurate are the results?

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They use standard formulas and are accurate for the inputs you provide.

Is my data saved anywhere?

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No. Every calculation runs locally in your browser – nothing you enter is stored or sent anywhere.

Can you add a utilities calculator I need?

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Yes – request it via the contact page and it can be built and made live fast, free of charge.

The developer

Built by a real person.

Jean Borg

Founder & developer · freecalculators.pro · Malta

I build and maintain every calculator on this site myself, from my desk in Malta. No faceless company and no outsourced content – each tool is coded by hand, shows the exact formula it uses, and gets fixed the moment something’s off. Need a calculator that isn’t here yet? Email me and it’s usually live within the hour, free.

Handbuilt & maintained Every formula shown Nothing you enter is stored