| What it does | Mortgage payoff calculators that start from your loan's current balance
| Electronics calculators for makers
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Free
| Freemium
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| Pricing | Not given
| Free: $0 forever. Pro Monthly: $4 per month, cancel anytime. Pro Lifetime: $29 one-time payment.
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| Key features | - Extra payment calculator for monthly, yearly or lump-sum additions
- Amortization schedule with payment breakdown
- Mortgage payoff date calculator
- Principal vs interest crossover calculation
- Prepay vs invest comparison
- PMI removal timing and acceleration
- Mortgage recast calculator
- Refinance break-even analysis
- Biweekly payment calculator
- ARM calculator for adjustable-rate mortgages
| - Resistor Color Code: read 4, 5 and 6-band resistors or find bands for a value
- LED Resistor: pick the current-limiting resistor and power rating
- Voltage Divider: output voltage, loading effect, or solve R2 for target Vout
- RC Filter: cutoff frequency, time constant and attenuation at any frequency
- LC Resonance: resonant frequency, characteristic impedance and Q
- 555 Timer: astable frequency/duty cycle and monostable pulse width
- Battery Life: runtime from capacity, active/sleep current and duty cycle
- PCB Trace Width: IPC-2221 trace width for current and temperature rise
- Electronics Unit Converter: SI prefixes, AWG to mm², mil to mm, dBm to mW, oz copper
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| What makes it different | - Starts calculations from today's current loan balance instead of original amount
- Handles multiple payment patterns simultaneously
- Results round like a real lender for accuracy
- All calculations run locally with no data sent to servers
- Verified against published figures with automated testing
| - Real E-series resistor values, not ideal numbers
- Engineering notation input and result sharing as links
- No ads, no tracking, no sign-up for free calculators
- Whole-device BOM costing and battery-life summary in Pro
- Works on phone at the bench
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | Not checked yet ● no change 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) | 4 | 0 |
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| Referring domains (Majestic) | 1 | 0 |
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