All Calculators
150 calculators across the five Bush & Bench family sites.
Here's how it works:
1. Pick a site below.
2. Its calculators open underneath.
3. Click one and it opens right here on this page.
30
Wired For The Wild
Will your battery last the weekend? Size your solar, cable and fuses before you head off.
30
Cordless Revival
How many cuts are left in that pack? Check runtime, charge time and mowing area.
30
Home & Workshop Solar
Is solar worth it for your shed? Size the system and see when it pays for itself.
30
Revival Academy 101
Not sure how volts, amps and watts fit together? These do the maths for you.
30
Bush & Bench
How much water can your roof catch? Size tanks, pumps, fences and concrete pours.
Wired For The Wild · 30 calculators
12V Install Tools & Testers · 17 calculators
- Solar Charging Check
- DC-DC Charger
- Charger & Inverter
- Voltage Drop
- Cable Size
- Battery Sizing
- Battery Runtime
- Battery Charging Time
- Series & Parallel
- Camping Trip Power Budget
- Check My System
- Driving Charge Time
- Generator Size for a Charger
- Diesel Heater Battery Use
- 12V Water Pump Battery Use
- Charger Size for Your Battery
- Starlink Power Use
Solar Power · 2 calculators
Distribution · 4 calculators
Storage · 5 calculators
Portable Power Stations · 2 calculators
Cordless Revival · 30 calculators
- Pack Runtime
- Pack Charge Time
- Power Station Recharges
- Rebuild or Replace
- Cell Layout
- Cuts Per Charge
- Mowing Area Per Charge
- E-Bike Range
- Pack Energy and Travel Limits
- Packs Needed for a Job
- Battery Cost per Wh
- Scale Your Results to Another Pack
- Charger Rotation
- Solar for Tool Packs
- Inverter Size for a Tool Charger
- E-Scooter Range
- E-Bike Charge Cost
- Cell Match Check
- Pack Internal Resistance
- Capacity Fade Estimate
- Cordless vs Petrol Running Cost
- 18V vs 20V Max Label Check
- Charger Watts
- Storage Charge Voltage
- Power Station Size for Tool Work
- Torque Converter
- Drill Speed for Hole Size
- Pack Weight Estimate
- Current per Cell
- Cost per Charge Cycle
Home & Workshop Solar · 30 calculators
- Daily Power Needs
- 12V / 24V / 48V Picker
- Solar Payback
- Solar Array Size
- MPPT Controller Size
- Inverter Size
- Battery Bank Size
- Blackout Runtime
- Panel Tilt Angle
- String Voltage Check
- Winter Solar Shortfall
- Self-Consumption Savings
- Generator Recharge Time and Fuel
- Battery Cost per kWh Cycled
- Battery Warranty Throughput
- Daily Solar Yield
- Panels That Fit Your Roof
- Inverter Losses per Day
- Standby Drain
- Hot Water Energy
- EV Charging From Solar
- Pool Pump Energy
- Aircon Running Energy
- Flat vs Time-of-Use Tariff
- Home Battery Payback
- Panel Output Over the Years
- Carbon Savings
- Compressor Energy
- Fridge or Freezer Label to Daily Use
- Battery Left After the Night
Revival Academy 101 · 30 calculators
- Ohm's Law
- Watts, Amps & Volts
- Wire Gauge (AWG & mm²)
- mAh, Ah & Wh Converter
- Resistor Colour Code
- Resistors in Series
- Resistors in Parallel
- Voltage Divider
- LED Resistor
- Cable Resistance
- Power Cost
- Energy (Wh and kWh)
- RC Time Constant
- Capacitors in Series and Parallel
- Unit Prefix Converter
- Meter Accuracy
- AC Power Factor
- Temperature Converter
- Efficiency
- Peak, Peak-to-Peak and RMS
- Frequency and Period
- Battery C-Rate
- Panel Watts, Volts and Amps
- Junction Current Check
- Power in a Resistor
- Battery Internal Resistance
- Transformer Turns Ratio
- Horsepower and Kilowatts
- Cell Count to Pack Voltage
- PWM Duty Cycle
Bush & Bench · 30 calculators
- Water Tank Size
- Roof Rainwater Catch
- Pump Size
- Electric Fence
- Fencing Materials
- Concrete & Area
- Chook Feed
- Chook Pen Space
- Mulch and Soil Volume
- Raised Bed Soil
- Gravel Tonnes
- Pavers
- Firewood Stack Volume
- Poly Pipe Size
- Stock Water Days
- Paddock Area
- Sleeper Retaining Wall
- Decking Boards
- Paint Coverage
- Lawn Seed and Fertiliser
- Garden Watering
- Water Pressure From Height
- Mowing Time
- Hay Bales Needed
- Dog Food
- Egg Cost per Dozen
- Mortar Mix
- Shed Roof Area
- Slope and Fall
- Tank Fill Time