Unit Converter for School Maths & Science
Convert between metric and imperial units commonly used in classrooms, lab reports, and entrance exams. Stay focused on the problem—the converter keeps the working transparent for quick checks and step-by-step explanations.
Result
0.1 Centimetre (cm)
1 mm = 0.1 cm
Base conversion: 1 mm → 0.001 m
- Classroom-ready conversions
- Metric and imperial options line up with the units most frequently tested in school exams and Olympiads.
- Works with any device
- Responsive layout and dark mode support keep the converter easy to use on phones, tablets, and desktops.
- Context-rich explanations
- See how each answer is calculated so you can reference the method in homework or revision notes.
Millimetre(mm)
mm → m: 0.001
Great for small lab equipment and ruler readings.
Centimetre(cm)
cm → m: 0.01
Common in geometry diagrams and biology drawings.
Metre(m)
m → m: 1
Standard SI base unit for length.
Kilometre(km)
km → m: 1,000
Used for mapping distances and travel problems.
Inch(in)
in → m: 0.0254
Favoured in craft work and some physics exam questions.
Foot(ft)
ft → m: 0.3048
Helpful for scale drawings and comparing heights.
Mile(mi)
mi → m: 1,609.344
Works well for large distance story problems.
1 Kilometre = 1,000 Metres
Length & Distance
12 Inchs = 1 Foot
Length & Distance
500 Grams = 0.5 Kilograms
Weight & Mass
2 Pounds = 0.907185 Kilograms
Weight & Mass
1 Litre = 1,000 Millilitres
Liquid Volume
3 Cup (US)s = 0.709765 Litres
Liquid Volume
- Keep magnitudes in mind—convert to the base SI unit first to judge whether an answer is realistic.
- Label the quantity and unit in every intermediate step to guard against accidental mixing of systems.
- When switching between imperial and metric, round only at the end to avoid cumulative error.
Are these conversion factors exam-safe?
Yes. Each value aligns with SI or NIST recommended factors, which are accepted in board and entrance examinations.
Can I enter negative values?
You can. The tool simply scales the value, so sign changes carry through as expected in displacement or relative change problems.
How precise are the answers?
Results display up to six decimal places by default. You can copy the precise figure or round to match the requirement in your exercise.
Whenever you record a conversion, include the factor shown in the result card. For example, note that 1 ft = 0.3048 m before scaling the quantity. This small habit keeps graders confident in your method.
The base conversion line reinforces dimensional analysis. By restating the value in m, you confirm that the quantity makes sense before converting to the target unit.
Revising for exams? Screenshot the quick reference cards or jot them into a formula sheet so you can rehearse without opening the tool.
How the unit converter works
Each measurement type is anchored to an SI base unit: metres for length, grams for mass, and litres for volume. The converter first translates your input into that base value, then scales it to the requested unit using precise reference factors. This mirrors what teachers expect when they say “convert everything to the base unit before substituting into the formula.”
Reliable conversion factors are especially important when moving between metric and imperial systems. We source the constants from the National Institute of Standards and Technology (NIST) guidelines, making the results trustworthy for board exams, Olympiads, and lab reports.
Treat the tool as a study partner: check your manual calculations, highlight the factor ratios in step-by-step answers, and keep your focus on interpreting what the numbers tell you about the scenario described in the question.