| What it does | Free UK money calculators for tax, mortgages, loans, savings and everyday maths
| Offline calculators for electricians, builders and HVAC technicians
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| Stage | Not given
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| Founded | Not given
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| Based in | GB
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| Pricing model | Free
| Freemium
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| Pricing | Not given
| Free: nine calculators (voltage drop, Ohm's law, watts to amps, concrete slab, roof pitch, board feet, BTU, CFM, BTU to kW), no time limit. Pro: $9.99 per year or $19.99 lifetime (one payment, no renewal).
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| Key features | - Take-home pay calculator for income tax and National Insurance
- Salary to hourly wage converter
- Student loan repayment calculator for Plans 1, 2, 4, 5 and postgraduate
- Mortgage repayment calculator
- Stamp Duty Land Tax calculator for England and Northern Ireland
- Compound interest and savings goal projections
- Debt payoff and credit card repayment planner
- VAT calculator
- Monthly budget builder
- Currency converter
| - Wire sizing and voltage drop calculations
- Conduit fill and box fill calculations
- Offline operation with no network required
- Transparent calculation steps and NEC warnings
- Job organization and PDF/CSV export
- Motor and generator sizing calculators
- Power and conversion calculators
- Building calculations for concrete and roof pitch
- No ads and no account required
- Private with data staying on device
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| What makes it different | - No signup required to use any calculator
- All calculators use official UK tax rates with documented update dates
- Consistent structure with worked examples and FAQ for every tool
- Designed for search accuracy and transparency
- Clear disclaimers and not personalised financial advice
| - Works completely offline with no network or cellular signal required
- Private by design with no account, no ads, and calculations never leaving your device
- Shows exact NEC formulas and calculation steps so you can verify results before fieldwork
- Over 35 specialized calculators covering electrical, building and HVAC trades
- Tested code with automated tests against independently worked examples
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 4 ▲ +2 (up) since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 0 | 13 |
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| Referring domains (Majestic) | 0 | 1 |
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