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Calculators
Open tool Roth Conversion Calculator
Estimate tax on a retirement-account conversion at an entered rate.
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PUBLISHED TOOL DIRECTORY
Useful tools, ready when you are.
Every card opens a working workspace. Pick the job, use the tool, and move on.
LIVE DIRECTORY
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Image Tools
Open tool Rounded Corner Maker
Create transparent rounded corners in PNG output.
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File Converters
Open tool RTF to PDF
Extract bounded RTF body text into a searchable PDF while ignoring embedded objects.
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Calculators
Open tool Rule of 72 Calculator
Compare Rule-of-72 and exact annual-compounding doubling times.
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Calculators
Open tool Running Cadence Calculator
Convert a timed step count into running steps per minute.
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Health & Wellness
Open tool Running Pace Calculator
Create a bounded, browser-local running pace calculator with visible assumptions, review guidance, and downloadable output.
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Calculators
Open tool Running Split Calculator
Calculate average running pace and speed from distance and time.
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Finance & Business
Open tool SaaS Burn Multiple Calculator
Compare positive net cash burn with matching positive net new ARR.
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Finance & Business
Open tool SaaS Magic Number Calculator
Annualize sequential subscription-revenue change against prior sales expense.
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Enterprise IT
Open tool SaaS Renewal Calendar
Create a bounded, editable saas renewal calendar from supplied enterprise IT data with transparent rules and operational safeguards.
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Finance & Business
Open tool SaaS Rule of 40 Calculator
Add signed annual growth and one explicitly named profitability margin.
Ready to use
Calculators
Open tool Safe Withdrawal Rate Calculator
Estimate annual spending supported by a portfolio at a selected rate.