Runtime Reduction
Runtime reduction describes the fraction of original time removed by a change.
Runtime Reduction
Performance · 2 inputs
How to use this calculator
- Enter original runtime in ms.
- Enter new runtime in ms.
- Select Calculate and keep the output unit with the answer.
Before you use the answer
Write down whether a size uses decimal or binary prefixes and whether a rate counts bits or bytes. Compare the same system boundary on both sides of a performance calculation. Measured throughput is usually a more useful planning input than the maximum number on a product label.
A four-times speedup means seventy-five percent less time, not four hundred percent less time.
Does it save my inputs?
No calculation history is stored by this website. The calculator works locally in your browser. See the privacy policy for hosting and contact details.
Why might a result be approximate?
Measurement uncertainty, ideal-model assumptions and floating-point rounding can all matter. Displaying more digits does not improve the original measurement.
Related calculations
Pixel Fill Rate
A screen's nominal pixel rate multiplies frame area by frame frequency.
Open calculator ↗Base64 Encoded Length
Padded Base64 maps each group of up to three input bytes into four characters.
Open calculator ↗Uniform Identifier Entropy
A uniformly sampled fixed-length identifier has a theoretical search space set by alphabet size and length.
Open calculator ↗