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Analytics & Research
Open tool North Star Metric Planner
Create a bounded, browser-local north star metric planner with visible assumptions, review guidance, and downloadable output.
BUILT AROUND YOUR WORK
Calculators and data tools for analysts
Before the chart, check the data. Prepare exports, preserve identifiers, and reconcile missing or duplicate records so a tidy spreadsheet does not hide a changed dataset.
Choose a focused workspace
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Analytics & Research
Open tool NPS Calculator
Create a bounded, browser-local nps calculator with visible assumptions, review guidance, and downloadable output.
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Math, Statistics & Probability
Open tool Odds Ratio Calculator
Calculate odds ratio with guided inputs, visible equations, substituted working, and model assumptions.
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Math, Statistics & Probability
Open tool One Proportion Confidence Interval Calculator
Calculate one proportion confidence interval with guided inputs, visible equations, substituted working, and model assumptions.
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Math, Statistics & Probability
Open tool One Proportion Z Statistic Calculator
Calculate one proportion z statistic with guided inputs, visible equations, substituted working, and model assumptions.
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Math, Statistics & Probability
Open tool One Sample T Statistic Calculator
Calculate one sample t statistic with guided inputs, visible equations, substituted working, and model assumptions.
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Math, Statistics & Probability
Open tool Ordered Bell Number Calculator
Count ordered partitions of a labelled set into nonempty blocks.
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Math, Statistics & Probability
Open tool Exact Padovan Number Calculator
Calculate a Padovan term under the explicit zero-based 1,1,1 convention.
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Math, Statistics & Probability
Open tool Paired Mean Confidence Interval Calculator
Calculate paired mean confidence interval with guided inputs, visible equations, substituted working, and model assumptions.
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Math, Statistics & Probability
Open tool Paired Sample T Statistic Calculator
Calculate paired sample t statistic with guided inputs, visible equations, substituted working, and model assumptions.
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Math, Statistics & Probability
Open tool Parabola Vertex Calculator
Calculate parabola vertex with guided inputs, visible equations, substituted working, and model assumptions.
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Math, Statistics & Probability
Open tool Parallelogram Area Vectors Calculator
Calculate parallelogram area vectors with guided inputs, visible equations, substituted working, and model assumptions.
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Analytics & Research
Open tool Participant Incentive Calculator
Create a bounded, reviewable participant incentive calculator from supplied research facts without collecting data, inferring findings, or claiming causality.
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Analytics & Research
Open tool Participant Screener Builder
Create a bounded, reviewable participant screener builder from supplied research facts without collecting data, inferring findings, or claiming causality.
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Math, Statistics & Probability
Open tool Exact Part Integer Partition Calculator
Count unordered partitions of n containing exactly k positive parts.
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Math, Statistics & Probability
Open tool Pearson Correlation Calculator
Calculate pearson correlation with guided inputs, visible equations, substituted working, and model assumptions.
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Math, Statistics & Probability
Open tool Exact Pell Sequence Calculator
Calculate a Pell sequence term from its zero-one coefficient-two recurrence.
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Math, Statistics & Probability
Open tool Percentile Rank Calculator
Calculate percentile rank with guided inputs, visible equations, substituted working, and model assumptions.
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Math, Statistics & Probability
Open tool Permutation and Combination Calculator
Count exact ordered permutations and unordered combinations without floating-point rounding.
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Math, Statistics & Probability
Open tool Permutation Involution Count Calculator
Count self-inverse permutations made only of fixed points and transpositions.
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Math, Statistics & Probability
Open tool Exact Perrin Number Calculator
Calculate a Perrin term under the explicit zero-based 3,0,2 convention.
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Analytics & Research
Open tool Persona Research Template
Create a bounded, browser-local persona research template with visible assumptions, review guidance, and downloadable output.
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Math, Statistics & Probability
Open tool Plane Partition Number Calculator
Count unrestricted plane partitions from MacMahon's generating product.
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Math, Statistics & Probability
Open tool Point Line Distance Calculator
Calculate point line distance with guided inputs, visible equations, substituted working, and model assumptions.