Area measures the two-dimensional extent of a surface — how much ground a piece of land covers, how much paint covers a wall, or how much carpet fits a room. Different industries and regions use different units: real estate in the US relies on square feet and acres, metric countries use square meters and hectares, and farmers worldwide mix and match depending on tradition.
Common Area Conversion Formulas
m² → ft²: multiply by 10.7639
ft² → m²: multiply by 0.0929
acres → m²: multiply by 4,046.86
acres → hectares: multiply by 0.4047
hectares → acres: multiply by 2.4711
km² → mi²: multiply by 0.3861
mi² → km²: multiply by 2.5900
Quick Reference Table
From
To
Value
1 acre
square feet
43,560
1 acre
square meters
4,046.86
1 hectare
acres
2.4711
1 hectare
square meters
10,000
1 m²
square feet
10.7639
1 km²
square miles
0.3861
1 mi²
acres
640
Common Use Cases
Real estate: Listing a house in ft² (US) or m² (Europe/Asia), comparing lot sizes in acres vs. hectares.
Agriculture: Crop yield per acre or per hectare, irrigation planning, pasture sizing.
Construction: Flooring, tiling, roofing, paint coverage — usually quoted per m² or per ft².
Land surveying: Plot boundaries in square meters, parcels in acres or hectares.
Area Converter is a free browser tool from SimpleCounter. Free area converter. Convert square meters, square feet, acres, hectares, square miles and more area units instantly. Enter your values and the result updates as you type — there is nothing to install and no account to create.
Definition: Area Converter
An area converter takes the numbers you enter and returns the result using the standard formula for that calculation, so you do not have to work it out by hand.
Key facts
Key facts about Area Converter
Cost
Free, with no account and no usage limit.
Where the maths happens
In your browser. The values you type are not sent to a server.
Devices
Any modern browser on phone, tablet, laptop or desktop.
Accuracy
Standard published formulas, shown with the units you selected.
Intended use
Estimates for everyday and educational use, not professional advice.
How to use the area converter
Type your value into the first field.
Choose the unit or option that matches your figures, if the tool offers a choice.
Read the result — it recalculates immediately, with no submit button.
Change any input to compare a second scenario side by side.
Disclaimer: This tool is provided for educational and informational purposes only. Results are estimates based on standard formulas and the inputs you provide. For financial, medical, legal, or tax decisions, consult a qualified professional. See our full disclaimer.
Frequently Asked Questions
How many square feet are in an acre?
1 acre equals exactly 43,560 square feet. This dates back to medieval England, where an acre was defined as the area a yoke of oxen could plow in one day — one chain (66 ft) wide by one furlong (660 ft) long.
How many acres are in a hectare?
1 hectare equals approximately 2.4711 acres. To convert hectares to acres, multiply by 2.4711. To convert acres to hectares, multiply by 0.4047.
How do you convert m² to ft²?
Multiply square meters by 10.7639. For example, 100 m² × 10.7639 = 1,076.39 ft². To go the other way, multiply ft² by 0.0929.
How big is 1 square mile?
1 square mile equals 640 acres, 2.59 km², or 27,878,400 ft². A typical US township is 36 square miles (6 miles by 6 miles).
What's the difference between an acre and a hectare?
An acre is an imperial unit (4,046.86 m²) used mainly in the US and UK for land. A hectare is a metric unit (10,000 m² — exactly a 100 m × 100 m square) used in most of the world for agriculture and forestry.
How many square meters in a square kilometer?
1 km² equals 1,000,000 m² (one million). A km² is a square 1,000 m on each side.
Benefits of using the Area Converter
What you actually get compared with a mechanical clicker, a notes app, or trying to hold the number in your head.
Nothing to install, nothing to sign up for
Open the area converter and start counting in the same second. No account, no email, no trial.
Your count survives real life
Totals are saved on your device as you go, so a locked screen, a closed tab, or a lost signal does not reset anything.
Works offline once loaded
Install it to your home screen and it keeps working in a warehouse, a pool hall, a field, or a plane — no connection needed.
Private by default
Counts stay in your browser. There is no cloud sync, no profile, and nothing about what you count is sent to us.
Free, with no sign-up
Works offline once loaded
Counts stay on your device
Installable as an app
Runs in your browser — nothing to download
72+ counter types available
Share your setup
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