Free calculators

Five small calculators that run in your browser. Every rate and fee is a box you fill in — nothing is stored, nothing is sent anywhere, and nothing goes out of date.

• House cleaning price estimator — rooms, clean level, rate and travel to a quote
• Hourly rate to job price — rate, hours, supplies, overhead and margin to a price
• Recurring client margin check — price, real minutes, supplies and travel to a margin and a flag
• Supply cost per job — a month of supply receipts to a per-clean cost, by kit type
• Break-even and product pricing — fixed costs, unit cost, platform fee and target margin to a price and break-even units

Each one ends with the paid workbook that does the same job properly, month after month. Use the calculator for free as long as it is useful; buy the workbook if you get tired of retyping.

Puzzle tools

• Word search maker — type your own words, print the puzzle and the answer key
• Kakuro combination finder — every set of digits that makes a run add up