Unit Converter

Unit Converter for length, weight, temperature, area and speed

This Unit Converter turns a value in one unit into its equivalent in another across five everyday categories: length, weight (mass), temperature, area and speed. Type a number, pick the unit you have and the unit you want, and the converted result appears instantly. It handles both metric units common in India (metre, centimetre, kilometre, kilogram, gram, square metre, hectare) and the imperial and US units you still meet on product specs, imported goods and international forms (inch, foot, mile, pound, ounce, acre, mile per hour).

What each category covers

• Length: millimetre, centimetre, metre, kilometre, inch, foot, yard and mile. Useful for fabric, pipe, room dimensions and travel distances.
• Weight: milligram, gram, kilogram, tonne, pound and ounce. Handy for grocery, courier parcels, gym plates and recipe conversions.
• Temperature: Celsius, Fahrenheit and Kelvin. Temperature is not a simple multiply-by-a-factor conversion, because the scales have different zero points.
• Area: square metre, square foot, square yard, acre and hectare. Common for property listings, plots and agricultural land.
• Speed: metres per second, kilometres per hour, miles per hour and knots. Useful for physics homework, vehicle specs and marine or aviation readings.

How the conversion works

For length, weight, area and speed the tool converts your input to a single base unit (for example, metres or kilograms), then converts that base value into the target unit. Because everything routes through one reference unit, results stay consistent no matter which direction you convert. Temperature is the exception: Celsius to Fahrenheit uses F = C x 9/5 + 32, and Kelvin adds 273.15 to Celsius. So 0 degrees Celsius is 32 Fahrenheit, and 37 degrees Celsius (normal body temperature) is 98.6 Fahrenheit.

Tips for accurate results

• Note the everyday overlap of weight and mass. Kilogram and pound are treated as mass here, which is exactly what shipping and grocery contexts expect.
• Square yard vs square foot matters a lot in Indian real estate: many builders quote carpet area in square feet while registries and older listings use square yards or square metres, so convert before comparing per-unit rates. One square yard equals nine square feet.
• An acre is roughly 4,047 square metres and a hectare is exactly 10,000 square metres (about 2.47 acres), which helps when a plot is listed in one and priced in another.
• Round only at the end. Converting, rounding, then converting again introduces avoidable error, especially over several steps.

The converter runs entirely in your browser, so the numbers you type are never uploaded anywhere. It is built for quick, practical everyday conversions rather than certified metrology, so for legal trade measurement, medical dosing or engineering tolerances, confirm the figure against an official standard or a certified instrument before you rely on it.

How to use it

1. Choose a category: length, weight, temperature, area or speed.
2. Type the value you want to convert into the input box.
3. Select the unit you are converting from.
4. Select the unit you want the answer in.
5. Read the converted result, which updates instantly as you change the value or the units.
6. Swap the from and to units to reverse the conversion whenever you need the opposite direction.

A property buyer in Pune compares two plots, one quoted in rupees per square foot and another per square yard, and uses the area converter to bring both to the same unit before judging which is actually cheaper. A parent checks a child's fever by converting a thermometer reading of 101 Fahrenheit into 38.3 Celsius. An online seller confirms a courier's weight slab by converting 750 grams into pounds for an international shipment.

A student solving physics problems converts 72 kilometres per hour into 20 metres per second, a tailor converts a 2.5 metre fabric requirement into inches for an imported pattern, and a farmer converts 3 acres into hectares to fill a subsidy form. These are quick, low-stakes checks where having length, weight, temperature, area and speed in one place saves hopping between apps.

Frequently asked questions

How do I convert Celsius to Fahrenheit?

Multiply the Celsius value by 9/5 and add 32. For example, 37 degrees Celsius becomes 98.6 Fahrenheit. The tool applies this formula automatically when you pick the two temperature scales.

What is the difference between square yard and square foot for property?

One square yard equals 9 square feet. Indian real estate often mixes the two, so always convert both quotes to a common unit before comparing per-unit prices or plot sizes.

How many square metres are in an acre and a hectare?

One acre is about 4,047 square metres and one hectare is exactly 10,000 square metres. A hectare is roughly 2.47 acres, which is useful for land records and agricultural forms.

Why is temperature converted differently from length or weight?

Length, weight, area and speed scales all start at zero, so they convert by a single multiplying factor. Temperature scales have different zero points, so the tool adds or subtracts an offset as well, such as the plus 32 in the Fahrenheit formula.

Is my data sent to a server?

No. The conversions run entirely in your browser using standard formulas, so the values you enter are never uploaded or stored anywhere.

Can I use this for legal trade or engineering work?

It is built for quick everyday conversions and is accurate for that purpose. For legal trade measurement, medical dosing or tight engineering tolerances, verify the result against an official standard or a certified instrument.