OnlineAITool
Calculators

Weight Converter

Convert between grams, kilograms, ounces, pounds and stone.

Updates as you type
Nothing is sent anywhere

Your figures

Result

How to use this tool

  1. Enter your own figures over the defaults — Value, From.
  2. The answer updates as you type. There is no button, and nothing is sent anywhere.
  3. Change one input at a time to see how sensitive the answer is to it.

Stone is used mainly in the UK and Ireland for body weight. One stone is 14 pounds.

How it works

This takes 2 inputs — value, from — and returns kilograms, grams, pounds, ounces and stone. The whole calculation happens in this page as you type: there is no submit button, no request, and nothing stored.

A worked example

Worked through with the figures the page already has in it: value of 70 and from of kg, giving kilograms of 70.000. These numbers come from running the calculator’s own code, not from being typed in here, so they cannot drift away from what you see on screen.

Starting from:

  • Value: 70
  • From: kg
ResultValue
Kilograms70.000
Grams70,000.0
Pounds154.324
Ounces2,469.18
Stone11.023

Weight Converter — frequently asked questions

How many pounds in a kilogram?

About 2.20462. One pound is exactly 0.45359237 kg.

What is a stone?

14 pounds, or about 6.35 kg. Still commonly used for body weight in the UK and Ireland.

Ounces or fluid ounces?

This converts weight ounces. Fluid ounces measure volume and are a different unit entirely.

Is this calculator free?

Yes, with no account, no limits and no data collection. It runs entirely in your browser.

Should I rely on this for a financial or medical decision?

No. It is a planning estimate built on standard formulas and stated assumptions. For decisions that matter, speak to a qualified professional who can account for your full circumstances.

Is this calculator accurate?

The arithmetic is exact — it uses the standard formula. What limits accuracy is the assumptions: the figures you enter, and factors the formula does not model such as fees, taxes and rule changes.

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Background reading: Loan, Mortgage and Investment Calculators Explained

Nothing is sent anywhere. The figures you type stay in this page and are never transmitted or stored — how that works.

Disclaimer. The formula is exact; the answer is only as good as the figures and assumptions above. Not financial, tax, medical or legal advice. Full disclaimer.