Convert a measurement to scale
Choose the scale, then type a real measurement or one taken on paper: the other is computed at once.
No account needed. The calculation is done in your browser: nothing is sent.
How it is calculated
At 1:50, one centimetre on paper is 50 centimetres in reality: divide the real measurement by 50 to draw it, multiply the paper measurement by 50 to read it.
Imperial scales are written differently: "1/4 in = 1 ft" means a quarter of an inch on paper is one foot, that is 1:48; "1/8 in = 1 ft" is 1:96.
A 5 m room fits on a letter sheet at 1:25; a 30 m lot needs 1:150 or more. In Planimonde, the export picks the round scale that fills the page and prints a reference bar to check with a ruler.
Other tools
Area of an irregular lotType the sides and diagonals of a lot with 3, 4, 5 or 6 sides: area, perimeter and a sketch to scale, without assuming a single right angle.Litres of paint for a roomRoom dimensions, doors, windows, number of coats: the area to paint and the litres to buy, in 3.78 L and 946 mL containers.Posts and sections of a fenceFence length, post spacing, gates: the number of sections, of posts, and the actual width of each section.Wire gauge for 12 V or 24 VVoltage of 12 V, 24 V or 48 V, current, round-trip length and allowed voltage drop: the AWG size that suits a van or boat circuit.Feet and inches to metresFeet and inches to metres, metres to feet and inches to the nearest eighth, square feet to square metres and back.