TS Toolshed

Seven instruments, one bench

Measure it.
Convert it.
Move on.

Plain calculators for the math you actually run into during the day — no account, no app store, no clutter. Pick a tool below.

Open the toolbox ↓
UNITS / TIME / MASS

Fig. 1–7 — the bench

FIG. 1

Tip Calculator

Split a bill and tip by any percentage.

 FIG. 2

Percentage Calculator

X% of Y, or the change between two numbers.

 FIG. 3

BMI Calculator

Metric or imperial, with the standard ranges.

 FIG. 4

Unit Converter

Length, weight, and temperature.

 FIG. 5

Age Calculator

Exact age in years, months, days.

 FIG. 6

Word & Character Counter

Live counts plus an estimated reading time.

 FIG. 7

Password Generator

Random passwords, generated in your browser.
FIG. 1

Tip Calculator

$0.00Tip amount
$0.00Total bill
$0.00Per person
FIG. 2

Percentage Calculator

What is X% of Y?

0Result

Percentage change from one number to another

0%Change
FIG. 3

BMI Calculator

—BMI
—Category

BMI is a rough screening measure, not a diagnosis — it doesn't account for muscle mass, frame, age, or sex.

FIG. 4

Unit Converter

0Converted value
FIG. 5

Age Calculator

—Current age
—Total days lived
FIG. 6

Word & Character Counter

0Words
0Characters
0Chars (no spaces)
0Sentences
—Reading time
FIG. 7

Password Generator

—

Generated locally in your browser using the Web Crypto API — nothing is sent anywhere or stored.

About

A small, honest toolbox

Toolshed is seven single-purpose calculators — a tip splitter, a percentage calculator, a BMI check, a unit converter, an age calculator, a word counter, and a password generator. That's it. No account, no app to install, nothing saved on a server.

Every calculation runs in your browser with plain JavaScript. Nothing you type is sent anywhere.

Why it looks like a blueprint

Because these are measuring instruments, not a lifestyle brand. The grid, the figure numbers, and the gauge in the header are meant to feel like a page out of a drafting notebook — a place for numbers to be exact, not decorated.

Feedback

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Legal

Privacy Policy

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Last updated: [date]

What this site collects

The calculators on Toolshed run entirely in your browser. Nothing you type into a calculator (bill amounts, dates of birth, text you paste into the word counter, etc.) is sent to a server or stored by this site.

Cookies and advertising

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Analytics

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Third-party links

This site does not knowingly collect personal information from children. If you believe a child has provided personal information, contact us using the details below and it will be removed.

Contact

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