NHS Healthcare Scientific Calculator
Powers, roots, logs and trig for study and lab work.
Your details
Answer
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Results update as you type
Works out brackets first, then powers, then multiplication and division, then addition and subtraction. Trig functions use degrees unless you switch to radians. log is base 10 and ln is the natural log. Nothing you type is stored or sent anywhere.
How it is worked out
- 1Type or tap an expression, for example log(1000) or 2^10. The answer updates as you type.
- 2Trig functions use degrees by default. Switch to radians if your formula needs them.
- 3Ans reuses the last answer, so you can build up a calculation in steps.
Worth knowing
- log is base 10 and ln is the natural logarithm (base e).
- Very large or very small results are shown in scientific notation.
Common questions
How do I work out a pH from a hydrogen ion concentration?+
pH is minus log of the concentration. For 0.0001 mol/L, type -log(0.0001) to get 4.
How do I square root a number?+
Tap √ and the number, then close the bracket. For example √(144) gives 12.
Sources
The rules and figures behind this calculator come from:
For study and general calculations. Do not use it to work out medicine doses: follow the BNF, local policies and your pharmacy team, and check calculations independently.
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