Straightforward calculators and planners for everyday decisions. Everything runs in your browser, with no account or paid API required.
19 free tools
Hidden Cost Calculator
Calculate the real cost of a purchase after fees, delivery, subscriptions and the value of your time.
Use this tool Money
Is It Worth It? Calculator
Compare a total cost with expected use and time saved to make a clearer value decision.
Use this tool Home
Will It Fit? Calculator
Check whether an item will fit inside a space, including rotated orientations and clearance.
Use this tool Planning
Backwards Planner
Work backwards from a deadline to create a practical, timed plan and calculate when to start.
Use this tool Use lessThe Use-It-Up Engine
Turn the food or craft materials you already have into useful combinations, with quantities and leftovers.
Use this tool PlanningThe Domino Effect
See how one change affects your weekly money, time and energy, including setup costs and routine knock-ons.
Use this tool PlanningThe Household Bottleneck
Schedule household jobs around shared equipment, dependencies and available people to reveal the main bottleneck.
Use this tool TechnologyWhat Cable Do I Need?
Choose the source port, destination port and job to find the right connection and the capabilities to check.
Use this tool HomeCan These Go Together?
Check a flavour combination, garment care labels or an everyday craft material pairing.
Use this tool HomeThe Packaging Problem Solver
Estimate a box, padding and a downloadable folding template from your item dimensions.
Use this tool MoneyThe Small Savings Machine
Rank small habit changes by annual savings and the effort they take.
Use this tool MoneyThe Real Break-Even Point
Compare two options including upfront costs, ongoing costs, usage and adjustable future assumptions.
Use this tool MoneyThe False Economy Detector
Compare pack prices after realistic consumption, waste and storage limits.
Use this tool Use lessHow Long Will It Last?
Estimate when a supply will run out, when to reorder, and what is tied up in stock.
Use this tool PlanningWhat Am I Missing?
Build a practical checklist of overlooked requirements, dependencies and the three biggest remaining risks.
Use this tool PlanningThe Friction Finder
Map a recurring process and estimate the effect of cutting searching, waiting, travel and repeated entry.
Use this tool HomeThe One-Trip Challenge
Group objects into estimated trips using their dimensions, rotations and a load limit you choose.
Use this tool HomeThe Minimum You Need
Separate the essentials from nice-to-haves, account for what you own, and total the missing items using your quotes.
Use this tool PlanningThe Better Way Generator
Describe a problem and choose constraints to compare practical ways to simplify it.
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