Sources & methodology
Formulas and conversion factors in this section follow:
3 tools
Area Converters
m², ft², acres shortcuts.
Property listings, floor plans, and land records use different area units depending on the country: square metres in most of the world, square feet in the US and UK, acres and hectares for land. These converters make like-for-like comparison simple.
Area factors are the square of the corresponding length factors: 1 ft² = 0.09290304 m² exactly, 1 acre = 4046.8564224 m², and 1 hectare = 10,000 m². For irregular plots, convert the total area rather than converting each side and multiplying, to avoid compounding rounding.
All area converters
Pick a tool to see the calculator, formula, worked example, and FAQs.
Explore other categories
More free tools across health, finance, math, and unit conversion.
7 tools
Universal Converters
Any unit → any unit: length, weight, time, and more.
12 tools
Health & Fitness
BMI, macros, protein, pace, sleep, and more.
8 tools
Length Converters
Popular length pairs including feet ↔ cm.
6 tools
Weight Converters
Popular weight pairs like kg ↔ lbs.
4 tools
Temperature Converters
Celsius, Fahrenheit, Kelvin shortcuts.
5 tools
Time Converters
Seconds ↔ HH:MM:SS and other time shortcuts.
2 tools
Speed Converters
km/h ↔ mph shortcuts.
4 tools
Volume Converters
Liters, gallons, cups shortcuts.
4 tools
Science Units
Pressure, energy, power, and angles.
1 tools
Data Size
Convert bytes, KB, MB, GB, and TB.
1 tools
Cooking & Baking
Ingredient cup ↔ gram style conversions.
8 tools
Finance
Tips, discounts, EMI, tax, salary, interest.
11 tools
Everyday Math
Percentages, age, GPA, averages, and more.