| What it does | Free party calculators, checklists, and printables for any occasion
| Electronics calculators for makers
|
|---|
| Stage | Not given
| Not given
|
|---|
| Founded | Not given
| Not given
|
|---|
| Based in | Not given
| Not given
|
|---|
| Pricing model | Free
| Freemium
|
|---|
| Pricing | Completely free with no subscriptions, hidden fees, or premium tiers.
| Free: $0 forever. Pro Monthly: $4 per month, cancel anytime. Pro Lifetime: $29 one-time payment.
|
|---|
| Key features | - Pizza and cake calculator for estimating quantities
- Chicken wing calculator with sauce estimations
- Drink calculator for alcohol, soda, and mixed drinks
- Charcuterie board calculator for meats, cheeses, and crackers
- Party budget tracker and allocator
- Party planning checklist and timeline
- Printable party templates and bingo cards
- Occasion-specific planning hubs for birthdays, graduations, and holidays
- Taco bar and setup planning with guest count support
| - 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
|
|---|
| What makes it different | - Over 51 calculators for precise food and supply quantities
- 100% free with no subscriptions or hidden fees
- No account signup required; data saved locally on device
- Occasion-specific planning paths for birthdays, graduations, seasonal holidays, and casual gatherings
| - 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
|
|---|
| Community votes | 0 | 0 |
|---|
| DR (Domain Rating by Ahrefs) | 31 ● no change since last check | 1 ▲ +1 (up) since last check |
|---|
| Trust Flow (Majestic) | 16 | 0 |
|---|
| Citation Flow (Majestic) | 34 | 0 |
|---|
| Referring domains (Majestic) | 555 | 0 |
|---|
OnePageParty
Ohmlark